Pin GitHub actions to commits. (#193)

Author: sanason

.github/workflows/ci.yml

@@ -9,9 +9,9 @@ jobs:
       contents: read
     steps:
       - name: Code Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
       - name: Install Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: "lts/*"
           cache: 'npm'