[Web] Some minor fixes and improvements for PHP 8

data/web/inc/lib/vendor/symfony/var-dumper/Cloner/AbstractCloner.php

@@ -309,7 +309,7 @@ abstract class AbstractCloner implements ClonerInterface
         $obj = $stub->value;
         $class = $stub->class;
 
-        if (\PHP_VERSION_ID < 80000 ? "\0" === ($class[15] ?? null) : false !== strpos($class, "@anonymous\0")) {
+        if (\PHP_VERSION_ID < 80000 ? "\0" === ($class[15] ?? null) : str_contains($class, "@anonymous\0")) {
             $stub->class = get_debug_type($obj);
         }
         if (isset($this->classInfo[$class])) {

data/web/inc/lib/vendor/symfony/var-dumper/Cloner/Data.php

@@ -155,16 +155,25 @@ class Data implements \ArrayAccess, \Countable, \IteratorAggregate
         return $this->__isset($key);
     }
 
+    /**
+     * @return mixed
+     */
     public function offsetGet($key)
     {
         return $this->__get($key);
     }
 
+    /**
+     * @return void
+     */
     public function offsetSet($key, $value)
     {
         throw new \BadMethodCallException(self::class.' objects are immutable.');
     }
 
+    /**
+     * @return void
+     */
     public function offsetUnset($key)
     {
         throw new \BadMethodCallException(self::class.' objects are immutable.');