do not call setAccessible() on PHP 8.1+ (#1931)

This operation has no effect since PHP 8.1 and the method is deprecated
in PHP 8.5.

Author: xabbuh

tests/Functional/BundleInitializationTest.php

@@ -186,7 +186,9 @@ public function testIssue1758Cache()
 
         $r = new \ReflectionObject($cache);
         $p = $r->getProperty('cache');
-        $p->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $p->setAccessible(true);
+        }
 
         $adapter = $p->getValue($cache);
         self::assertInstanceOf(ApcuAdapter::class, $adapter);
@@ -205,7 +207,9 @@ public function testIssue1758Provider()
 
         $r = new \ReflectionClass(AbstractApi::class);
         $p = $r->getProperty('credentialProvider');
-        $p->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $p->setAccessible(true);
+        }
 
         $credentialProvider = $p->getValue($client);
         self::assertInstanceOf(InstanceProvider::class, $credentialProvider);
@@ -226,7 +230,9 @@ public function testIssue1758ProviderAndCache()
 
         $r = new \ReflectionClass(AbstractApi::class);
         $p = $r->getProperty('credentialProvider');
-        $p->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $p->setAccessible(true);
+        }
 
         $credentialProvider = $p->getValue($client);
         self::assertInstanceOf(CacheProvider::class, $credentialProvider);
@@ -235,13 +241,17 @@ public function testIssue1758ProviderAndCache()
 
         $r = new \ReflectionObject($cache);
         $p = $r->getProperty('cache');
-        $p->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $p->setAccessible(true);
+        }
 
         $adapter = $p->getValue($cache);
         self::assertInstanceOf(ApcuAdapter::class, $adapter);
 
         $p = $r->getProperty('decorated');
-        $p->setAccessible(true);
+        if (\PHP_VERSION_ID < 80100) {
+            $p->setAccessible(true);
+        }
 
         $decorated = $p->getValue($cache);
         self::assertInstanceOf(InstanceProvider::class, $decorated);