refactor: updated Node.js versions tests (#13)

[Node.js v18 has been EOL since March](https://nodejs.org/en/about/previous-releases), but newer Node.js versions aren't tested for so far.

Author: mfranzke

.github/workflows/test.yml

@@ -7,13 +7,13 @@ on:
     branches: [main]
 
 jobs:
-  test-node-18:
+  test-node-20:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
       - run: yarn install --frozen-lockfile
       - run: yarn ci
       # TypeScript NodeNext Example
@@ -27,13 +27,33 @@ jobs:
       - run: yarn test
         working-directory: ./examples/typescript-legacy
 
-  test-node-20:
+  test-node-22:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
+      - run: yarn install --frozen-lockfile
+      - run: yarn ci
+      # TypeScript NodeNext Example
+      - run: yarn install --frozen-lockfile
+        working-directory: ./examples/typescript-nodenext
+      - run: yarn test
+        working-directory: ./examples/typescript-nodenext
+      # TypeScript Legacy Example
+      - run: yarn install --frozen-lockfile
+        working-directory: ./examples/typescript-legacy
+      - run: yarn test
+        working-directory: ./examples/typescript-legacy
+
+  test-node-24:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
       - run: yarn install --frozen-lockfile
       - run: yarn ci
       # TypeScript NodeNext Example