Merge pull request #34 from AH-dark/renovate/actions-cache-4.x

chore(deps): update actions/cache action to v4

.github/workflows/rust.yml

@@ -21,7 +21,7 @@ jobs:
         uses: arduino/setup-protoc@v3
 
       - name: Set up cargo cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         continue-on-error: false
         with:
           path: |