ci: Apply standard ci-node-version

Author: matz3

.github/workflows/github-ci.yml

@@ -21,10 +21,10 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Setup Node.js
+    - name: Use Node.js LTS 22
       uses: actions/setup-node@v6
       with:
-        node-version: 20.19.0
+        node-version: 22
 
     - name: Install dependencies
       run: npm ci