CI: also use a fixed nodejs version for building

Author: lazka

.github/workflows/Test.yml

@@ -35,6 +35,9 @@ jobs:
       uses: actions/checkout@v6
       with:
         persist-credentials: false
+    - uses: actions/setup-node@v6
+      with:
+        node-version: 24
     - name: 🚧 build action
       shell: bash
       run: |