ci(deps): Update actions/cache action to v5 (#690)

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

Author: renovate[bot]

.github/workflows/cd.yaml

@@ -142,7 +142,7 @@ jobs:
 
       - name: Cached tofu binary?
         id: tofu-binary-cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             /usr/local/bin/tofu