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

1 files changed, 15 insertions, 20 deletions

diff --git a/vendor/chillerlan/php-qrcode/src/Data/Number.php b/vendor/chillerlan/php-qrcode/src/Data/Number.php
index 3936d12c3..0a905b13e 100644
--- a/vendor/chillerlan/php-qrcode/src/Data/Number.php
+++ b/vendor/chillerlan/php-qrcode/src/Data/Number.php
@@ -4,7 +4,7 @@
  *
  * @filesource   Number.php
  * @created      26.11.2015
- * @package      QRCode
+ * @package      chillerlan\QRCode\Data
  * @author       Smiley <[email protected]>
  * @copyright    2015 Smiley
  * @license      MIT
@@ -14,22 +14,19 @@ namespace chillerlan\QRCode\Data;
 
 use chillerlan\QRCode\QRCode;
 
-use function ord, sprintf, substr;
+use function ord, sprintf, str_split, substr;
 
 /**
- * Numeric mode: decimal digits 0 through 9
+ * Numeric mode: decimal digits 0 to 9
+ *
+ * ISO/IEC 18004:2000 Section 8.3.2
+ * ISO/IEC 18004:2000 Section 8.4.2
  */
-class Number extends QRDataAbstract{
+final class Number extends QRDataAbstract{
 
-	/**
-	 * @inheritdoc
-	 */
-	protected $datamode = QRCode::DATA_NUMBER;
+	protected int $datamode = QRCode::DATA_NUMBER;
 
-	/**
-	 * @inheritdoc
-	 */
-	protected $lengthBits = [10, 12, 14];
+	protected array $lengthBits = [10, 12, 14];
 
 	/**
 	 * @inheritdoc
@@ -56,20 +53,18 @@ class Number extends QRDataAbstract{
 	}
 
 	/**
-	 * @param string $string
+	 * get the code for the given numeric string
 	 *
-	 * @return int
-	 * @throws \chillerlan\QRCode\Data\QRCodeDataException
+	 * @throws \chillerlan\QRCode\Data\QRCodeDataException on an illegal character occurence
 	 */
 	protected function parseInt(string $string):int{
 		$num = 0;
 
-		$len = strlen($string);
-		for($i = 0; $i < $len; $i++){
-			$c = ord($string[$i]);
+		foreach(str_split($string) as $chr){
+			$c = ord($chr);
 
-			if(!in_array($string[$i], $this::NUMBER_CHAR_MAP, true)){
-				throw new QRCodeDataException(sprintf('illegal char: "%s" [%d]', $string[$i], $c));
+			if(!isset($this::CHAR_MAP_NUMBER[$chr])){
+				throw new QRCodeDataException(sprintf('illegal char: "%s" [%d]', $chr, $c));
 			}
 
 			$c   = $c - 48; // ord('0')