chore(deps): update actions/cache digest to cdf6c1f (#810)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/main.yml

@@ -62,7 +62,7 @@ jobs:
 
       - name: Cache Bazel stuff
         if: ${{ matrix.java-version == '21' }}
-        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
         with:
           path: |
             ~/.cache/bazel