feat!: bump engines to Node.js >=22.12.0 (#139)

BREAKING CHANGE: Requires Node.js v22.12.0 LTS or higher. ESM-only.

vitest.config.ts

@@ -0,0 +1,7 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    globalSetup: './test/globalSetup.ts',
+  },
+});