Fix fk name change detection in schema comparator

As index renaming support was introduced a while back do the same for
foreign key name changes.

Signed-off-by: Christoph Krapp <christoph.krapp@power.cloud>

src/Schema/Comparator.php

@@ -371,6 +371,10 @@ private function detectRenamedIndexes(array &$addedIndexes, array &$removedIndex
 
     protected function diffForeignKey(ForeignKeyConstraint $key1, ForeignKeyConstraint $key2): bool
     {
+        if (strtolower($key1->getName()) !== strtolower($key2->getName())) {
+            return true;
+        }
+
         if (
             array_map('strtolower', $key1->getUnquotedLocalColumns())
             !== array_map('strtolower', $key2->getUnquotedLocalColumns())

tests/Schema/AbstractComparatorTestCase.php

@@ -373,9 +373,14 @@ public function testCompareForeignKeyBasedOnPropertiesNotName(): void
         $tableB->addColumn('ID', Types::INTEGER);
         $tableB->addForeignKeyConstraint('bar', ['id'], ['id'], [], 'bar_constraint');
 
-        $tableDiff = $this->comparator->compareTables($tableA, $tableB);
-
-        self::assertTrue($tableDiff->isEmpty());
+        self::assertEquals(
+            new TableDiff($tableA, [], [], [], [], [], [], [], [], [
+                new ForeignKeyConstraint(['id'], 'bar', ['id'], 'bar_constraint'),
+            ], [], [
+                new ForeignKeyConstraint(['id'], 'bar', ['id'], 'foo_constraint'),
+            ]),
+            $this->comparator->compareTables($tableA, $tableB),
+        );
     }
 
     public function testDetectRenameColumn(): void