Fixed type issues that Psalm tool reported

Author: tarlepp

tests/Integration/Entity/LogLoginFailureTest.php

@@ -82,8 +82,7 @@ public function testThatGetterReturnsExpectedValue(
 
         $logRequest = new LogLoginFailure(new User());
 
-        if ($meta !== null
-            && method_exists($meta, 'isManyToManyOwningSide')
+        if ($meta instanceof AssociationMapping
             && (
                 $meta->isManyToManyOwningSide()
                 || $meta->isOneToMany()

tests/Integration/Entity/LogLoginTest.php

@@ -98,7 +98,7 @@ public function testThatGetterReturnsExpectedValue(
             new User(),
         );
 
-        if (method_exists($meta, 'isManyToManyOwningSide')
+        if ($meta instanceof AssociationMapping
             && (
                 $meta->isManyToManyOwningSide()
                 || $meta->isOneToMany()

tests/Integration/Entity/LogRequestTest.php

@@ -100,7 +100,7 @@ public function testThatGetterReturnsExpectedValue(
 
         $value = $logRequest->{$getter}();
 
-        if (method_exists($meta, 'isManyToManyOwningSide')
+        if ($meta instanceof AssociationMapping
             && (
                 $meta->isManyToManyOwningSide()
                 || $meta->isOneToMany()

tests/Integration/TestCase/EntityTestCase.php

@@ -141,7 +141,7 @@ public function testThatSetterOnlyAcceptSpecifiedType(
         string $type,
         FieldMapping|AssociationMapping $meta,
     ): void {
-        if (method_exists($meta, 'isManyToManyOwningSide')
+        if ($meta instanceof AssociationMapping
             && (
                 $meta->isManyToManyOwningSide()
                 || $meta->isOneToMany()
@@ -178,7 +178,7 @@ public function testThatSetterReturnsInstanceOfEntity(
         string $type,
         FieldMapping|AssociationMapping $meta,
     ): void {
-        if (method_exists($meta, 'isManyToManyOwningSide')
+        if ($meta instanceof AssociationMapping
             && (
                 $meta->isManyToManyOwningSide()
                 || $meta->isOneToMany()
@@ -227,7 +227,7 @@ public function testThatGetterReturnsExpectedValue(
         /** @var callable $callable */
         $callable = [$entity, $getter];
 
-        if (method_exists($meta, 'isManyToManyOwningSide')
+        if ($meta instanceof AssociationMapping
             && (
                 $meta->isManyToManyOwningSide()
                 || $meta->isOneToMany()