[HttpFoundation] Fix test ensuring isMethodSafe() checks cacheable

Author: chalasr

Tests/RequestTest.php

@@ -1951,7 +1951,7 @@ public function methodSafeProvider()
     public function testMethodSafeChecksCacheable()
     {
         $request = new Request();
-        $request->setMethod('OPTION');
+        $request->setMethod('OPTIONS');
         $this->assertFalse($request->isMethodSafe());
     }