Pin GitHub Actions (#21093)

Author: juliendoutre

.github/workflows/datadog-static-analysis.yml

@@ -11,7 +11,7 @@ jobs:
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: Check code meets quality and security standards
       id: datadog-static-analysis
-      uses: DataDog/datadog-static-analyzer-github-action@v1
+      uses: DataDog/datadog-static-analyzer-github-action@2707598b1182dce1d1792186477b5b4132338e1c # v1.2.3
       with:
         dd_api_key: ${{ secrets.DD_API_KEY }}
         dd_app_key: ${{ secrets.DD_STATIC_ANALYSIS_APP_KEY }}