Merge pull request #33 from stackitcloud/renovate/actions-cache-4.x

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

Author: PatrickKoss

.github/workflows/main.yml

@@ -32,7 +32,7 @@ jobs:
         uses: actions/checkout@v4
 
       # cache go modules
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           # In order:
           # * Module download cache

.github/workflows/release.yaml

@@ -28,7 +28,7 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: stable
-      - uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 # v3.3.2
+      - uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2 # v4.0.0
         with:
           path: |
             ~/.cache/go-build