moving from jest to vitest

vitest.gh.config.js

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2026 by Christian Kellner.
+ * Licensed under Apache-2.0 with Commons Clause and Attribution/Naming Clause
+ */
+
+import { defineConfig, mergeConfig } from 'vitest/config';
+import base from './vitest.config.js';
+
+export default mergeConfig(
+  base,
+  defineConfig({
+    test: {
+      exclude: [
+        '**/node_modules/**',
+        'test/provider/immonet.test.js',
+        'test/provider/immobilienDe.test.js',
+        'test/provider/immowelt.test.js',
+      ],
+    },
+  }),
+);