[BUGFIX] Catch E_WARNING when unserialize() fails

Since PHP 8.3, unserialize() throws an E_WARNING instead of E_NOTICE.
This leads to an error when viewing crawler information for pages
and when crawling sites:

> PHP Warning: unserialize(): Error at offset 0 of 122 bytes
> in typo3conf/ext/crawler/Classes/Converter/JsonCompatibilityConverter.php line 39

Resolves: tomasnorre#1087

CHANGELOG.md

@@ -9,6 +9,7 @@
 ### Fixed
 * Fixed query building when using _ADDTABLE parameter [@hawkeye1909](https://github.com/hawkeye1909)
 * Typecast PageTS Crawler Configuration `force_ssl` to `int`
+* Catch E_WARNING when unserialize() fails [cweiske](https://github.com/cweiske)
 
 ### Deprecated
 

Classes/Converter/JsonCompatibilityConverter.php

@@ -36,7 +36,11 @@ class JsonCompatibilityConverter
      */
     public function convert(string $dataString)
     {
-        $unserialized = unserialize($dataString, ['allowed_classes' => false]);
+        try {
+            $unserialized = unserialize($dataString, ['allowed_classes' => false]);
+        } catch (\Throwable) {
+            $unserialized = false;
+        }
         if (is_object($unserialized)) {
             throw new \Exception('Objects are not allowed: ' . var_export($unserialized, true), 1593758307);
         }