github ci: pin action versions

Author: legobeat

.github/workflows/nodejs.yml

@@ -15,9 +15,9 @@ jobs:
           - 22
         os: [ubuntu-latest]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
     - name: Use Node.js ${{ matrix.node }}
-      uses: actions/setup-node@v4
+      uses: actions/setup-node@1e60f620b9541d16bece96c5465dc8ee9832be0b # v4
       with:
         node-version: ${{ matrix.node }}
     - run: npm install