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

Author: renovate[bot]

.github/workflows/gradle.yml

@@ -29,7 +29,7 @@ jobs:
 
     - name: Cache everything for CD
       if: github.ref_type == 'tag'
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: .
         key: ci-data
@@ -41,7 +41,7 @@ jobs:
 
     steps:
       - name: Restore data from cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: .
           key: ci-data