chore(deps): update actions/cache digest to 6682284

Author: renovate[bot]

.github/workflows/main.yml

@@ -62,7 +62,7 @@ jobs:
 
       - name: Cache Bazel stuff
         if: ${{ matrix.java-version == '21' }}
-        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
+        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
         with:
           path: |
             ~/.cache/bazel