Update php-qrcode and php-settings-container for PHP 8.1

By running the following command after updating composer.json

```
composer update chillerlan/php-qrcode chillerlan/php-settings-container
```

This change fixes a deprecation warning from Preferences ->
Personal data / Authentication -> Authenticator (OTP).

```
Return type of chillerlan\Settings\SettingsContainerAbstract::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
1. vendor/chillerlan/php-settings-container/src/SettingsContainerAbstract.php(19): ttrss_error_handler(Return type of chillerlan\Settings\SettingsContainerAbstract::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice, vendor/chillerlan/php-settings-container/src/SettingsContainerAbstract.php)
2. vendor/composer/ClassLoader.php(571): include(/usr/share/webapps/tt-rss/vendor/chillerlan/php-settings-container/src/SettingsContainerAbstract.php)
3. vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile(/usr/share/webapps/tt-rss/vendor/composer/../chillerlan/php-settings-container/src/SettingsContainerAbstract.php)
4. vendor/chillerlan/php-qrcode/src/QROptions.php(59): loadClass(chillerlan\Settings\SettingsContainerAbstract)
5. vendor/composer/ClassLoader.php(571): include(/usr/share/webapps/tt-rss/vendor/chillerlan/php-qrcode/src/QROptions.php)
6. vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile(/usr/share/webapps/tt-rss/vendor/composer/../chillerlan/php-qrcode/src/QROptions.php)
7. vendor/chillerlan/php-qrcode/src/QRCode.php(113): loadClass(chillerlan\QRCode\QROptions)
8. classes/pref/prefs.php(958): __construct()
9. classes/pref/prefs.php(469): _get_otp_qrcode_img()
10. classes/pref/prefs.php(541): index_auth_2fa()
11. backend.php(136): index_auth()
```

The issue is fixed in php-settings-container 2.1.1 [1] Here I use the
latest php-qrcode version for another PHP 8.1 fix [2].

[1] https://github.com/chillerlan/php-settings-container/commit/68bc5019c8b38956c83906431ef879668366b036#diff-359c7f7a6d32d9935951e1b0742eb116fb654f4a932c8d40328bb5dcab2fa111L162
[2] https://github.com/chillerlan/php-qrcode/issues/97

vendor/chillerlan/php-qrcode/examples/MyCustomOutput.php

@@ -28,6 +28,8 @@ class MyCustomOutput extends QROutputAbstract{
 			for($col = 0; $col < $this->moduleCount; $col++){
 				$output .= (int)$this->matrix->check($col, $row);
 			}
+
+			$output .= \PHP_EOL;
 		}
 
 		return $output;

vendor/chillerlan/php-qrcode/examples/QRImageWithText.php

@@ -19,6 +19,7 @@
 namespace chillerlan\QRCodeExamples;
 
 use chillerlan\QRCode\Output\QRImage;
+
 use function base64_encode, imagechar, imagecolorallocate, imagecolortransparent, imagecopymerge, imagecreatetruecolor,
 	imagedestroy, imagefilledrectangle, imagefontwidth, in_array, round, str_split, strlen;
 
@@ -31,29 +32,24 @@ class QRImageWithText extends QRImage{
 	 * @return string
 	 */
 	public function dump(string $file = null, string $text = null):string{
-		$this->image = imagecreatetruecolor($this->length, $this->length);
-		$background  = imagecolorallocate($this->image, ...$this->options->imageTransparencyBG);
+		// set returnResource to true to skip further processing for now
+		$this->options->returnResource = true;
 
-		if((bool)$this->options->imageTransparent && in_array($this->options->outputType, $this::TRANSPARENCY_TYPES, true)){
-			imagecolortransparent($this->image, $background);
-		}
-
-		imagefilledrectangle($this->image, 0, 0, $this->length, $this->length, $background);
-
-		foreach($this->matrix->matrix() as $y => $row){
-			foreach($row as $x => $M_TYPE){
-				$this->setPixel($x, $y, $this->moduleValues[$M_TYPE]);
-			}
-		}
+		// there's no need to save the result of dump() into $this->image here
+		parent::dump($file);
 
 		// render text output if a string is given
 		if($text !== null){
 			$this->addText($text);
 		}
 
-		$imageData = $this->dumpImage($file);
+		$imageData = $this->dumpImage();
 
-		if((bool)$this->options->imageBase64){
+		if($file !== null){
+			$this->saveToFile($imageData, $file);
+		}
+
+		if($this->options->imageBase64){
 			$imageData = 'data:image/'.$this->options->outputType.';base64,'.base64_encode($imageData);
 		}
 
@@ -80,7 +76,7 @@ class QRImageWithText extends QRImage{
 		$background  = imagecolorallocate($this->image, ...$textBG);
 
 		// allow transparency
-		if((bool)$this->options->imageTransparent && in_array($this->options->outputType, $this::TRANSPARENCY_TYPES, true)){
+		if($this->options->imageTransparent && in_array($this->options->outputType, $this::TRANSPARENCY_TYPES, true)){
 			imagecolortransparent($this->image, $background);
 		}
 
@@ -97,7 +93,7 @@ class QRImageWithText extends QRImage{
 
 		// loop through the string and draw the letters
 		foreach(str_split($text) as $i => $chr){
-			imagechar($this->image, $textSize, $i * $w + $x, $this->length, $chr, $fontColor);
+			imagechar($this->image, $textSize, (int)($i * $w + $x), $this->length, $chr, $fontColor);
 		}
 	}
 

vendor/chillerlan/php-qrcode/examples/image.php

@@ -17,15 +17,16 @@ require_once __DIR__.'/../vendor/autoload.php';
 $data = 'https://www.youtube.com/watch?v=DLzxrzFCyOs&t=43s';
 
 $options = new QROptions([
-	'version'      => 7,
+	'version'      => 10,
 	'outputType'   => QRCode::OUTPUT_IMAGE_PNG,
-	'eccLevel'     => QRCode::ECC_L,
+	'eccLevel'     => QRCode::ECC_H,
 	'scale'        => 5,
 	'imageBase64'  => false,
 	'moduleValues' => [
 		// finder
 		1536 => [0, 63, 255], // dark (true)
 		6    => [255, 255, 255], // light (false), white is the transparency color and is enabled by default
+		5632 => [241, 28, 163], // finder dot, dark (true)
 		// alignment
 		2560 => [255, 0, 255],
 		10   => [255, 255, 255],
@@ -33,7 +34,7 @@ $options = new QROptions([
 		3072 => [255, 0, 0],
 		12   => [255, 255, 255],
 		// format
-		3584 => [67, 191, 84],
+		3584 => [67, 99, 84],
 		14   => [255, 255, 255],
 		// version
 		4096 => [62, 174, 190],
@@ -47,6 +48,8 @@ $options = new QROptions([
 		8    => [255, 255, 255],
 		// quietzone
 		18   => [255, 255, 255],
+		// logo (requires a call to QRMatrix::setLogoSpace())
+		20    => [255, 255, 255],
 	],
 ]);
 

vendor/chillerlan/php-qrcode/examples/imageWithLogo.php

@@ -23,8 +23,8 @@ $data = 'https://www.youtube.com/watch?v=DLzxrzFCyOs&t=43s';
  */
 class LogoOptions extends QROptions{
 	// size in QR modules, multiply with QROptions::$scale for pixel size
-	protected $logoSpaceWidth;
-	protected $logoSpaceHeight;
+	protected int $logoSpaceWidth;
+	protected int $logoSpaceHeight;
 }
 
 $options = new LogoOptions;

vendor/chillerlan/php-qrcode/examples/svg.php

@@ -20,6 +20,7 @@ $gzip = true;
 $options = new QROptions([
 	'version'      => 7,
 	'outputType'   => QRCode::OUTPUT_MARKUP_SVG,
+	'imageBase64'  => false,
 	'eccLevel'     => QRCode::ECC_L,
 	'svgViewBoxSize' => 530,
 	'addQuietzone' => true,