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, 11 insertions, 17 deletions

diff --git a/vendor/chillerlan/php-qrcode/src/Helpers/Polynomial.php b/vendor/chillerlan/php-qrcode/src/Helpers/Polynomial.php
index abe11d0cc..c42e0831c 100644
--- a/vendor/chillerlan/php-qrcode/src/Helpers/Polynomial.php
+++ b/vendor/chillerlan/php-qrcode/src/Helpers/Polynomial.php
@@ -17,12 +17,14 @@ use chillerlan\QRCode\QRCodeException;
 use function array_fill, count, sprintf;
 
 /**
- * @link http://www.thonky.com/qr-code-tutorial/error-correction-coding
+ * Polynomial long division helpers
+ *
+ * @see http://www.thonky.com/qr-code-tutorial/error-correction-coding
  */
-class Polynomial{
+final class Polynomial{
 
 	/**
-	 * @link http://www.thonky.com/qr-code-tutorial/log-antilog-table
+	 * @see http://www.thonky.com/qr-code-tutorial/log-antilog-table
 	 */
 	protected const table = [
 		[  1,   0], [  2,   0], [  4,   1], [  8,  25], [ 16,   2], [ 32,  50], [ 64,  26], [128, 198],
@@ -60,29 +62,26 @@ class Polynomial{
 	];
 
 	/**
-	 * @var array
+	 * @var int[]
 	 */
-	protected $num = [];
+	protected array $num = [];
 
 	/**
 	 * Polynomial constructor.
-	 *
-	 * @param array|null $num
-	 * @param int|null   $shift
 	 */
 	public function __construct(array $num = null, int $shift = null){
 		$this->setNum($num ?? [1], $shift);
 	}
 
 	/**
-	 * @return array
+	 *
 	 */
 	public function getNum():array{
 		return $this->num;
 	}
 
 	/**
-	 * @param array    $num
+	 * @param int[]    $num
 	 * @param int|null $shift
 	 *
 	 * @return \chillerlan\QRCode\Helpers\Polynomial
@@ -105,7 +104,7 @@ class Polynomial{
 	}
 
 	/**
-	 * @param array $e
+	 * @param int[] $e
 	 *
 	 * @return \chillerlan\QRCode\Helpers\Polynomial
 	 */
@@ -127,7 +126,7 @@ class Polynomial{
 	}
 
 	/**
-	 * @param array $e
+	 * @param int[] $e
 	 *
 	 * @return \chillerlan\QRCode\Helpers\Polynomial
 	 */
@@ -150,9 +149,6 @@ class Polynomial{
 	}
 
 	/**
-	 * @param int $n
-	 *
-	 * @return int
 	 * @throws \chillerlan\QRCode\QRCodeException
 	 */
 	public function glog(int $n):int{
@@ -165,9 +161,7 @@ class Polynomial{
 	}
 
 	/**
-	 * @param int $n
 	 *
-	 * @return int
 	 */
 	public function gexp(int $n):int{