chore: update TypeScript configuration and dependencies to use @tsconfig/node22

Author: miichom

package-lock.json

@@ -8,7 +8,7 @@
   "types": "dist/index.d.ts",
   "devDependencies": {
     "@eslint/js": "^9.39.3",
-    "@tsconfig/node16": "^16.1.8",
+    "@tsconfig/node22": "^22.0.5",
     "@types/node": "^24.11.0",
     "@vitest/coverage-v8": "^3.2.4",
     "eslint": "^9.39.3",

package.json

@@ -1,11 +1,12 @@
 {
-  "extends": "@tsconfig/node16/tsconfig.json",
+  "extends": "@tsconfig/node22/tsconfig.json",
   "compilerOptions": {
-    "module": "ESNext",
-    "target": "ES2022",
+    "module": "node20",
+    "target": "es2020",
     "declaration": true,
     "preserveConstEnums": true,
-    "outDir": "dist"
+    "outDir": "dist",
+    "rootDir": "."
   },
   "include": ["src/**/*"],
   "exclude": ["**/*.spec.ts"]