chore(deps): update actions/cache digest to 55cc834 (#881)

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@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6
         with:
           path: |
             ~/.cache/bazel