chore(deps): update actions/cache action to v5

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -39,7 +39,7 @@ jobs:
       # previously built artifacts to minimize build time. The more precise you are with
       # hashFiles sources the less work bazel will have to do.
       - name: Mount bazel caches
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cache/bazel

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
       - name: Mount bazel caches
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cache/bazel