Pin CodeQL GitHub Actions

Author: marcphilipp

.github/workflows/codeql.yml

@@ -29,14 +29,14 @@ jobs:
           distribution: temurin
       - uses: sbt/setup-sbt@6c68d2fe8dfbc0a0534d70101baa2e0420e1a506 # v1.1.9
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@ce28f5bb42b7a9f2c824e633a3f6ee835bab6858 # v3.29.0
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
       - if: matrix.build-mode == 'manual'
         # TODO compile only, avoid running tests
         run: java src/Builder.java
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@ce28f5bb42b7a9f2c824e633a3f6ee835bab6858 # v3.29.0
         with:
           category: "/language:${{matrix.language}}"