chore(deps): update actions/checkout action to v4 (#10)

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

Author: renovate[bot]

.github/workflows/cache.yaml

@@ -12,7 +12,7 @@ jobs:
     name: clean
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: mokmok-dev/delete-actions-cache@v0.1.0
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/push.yaml

@@ -16,7 +16,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: docker/metadata-action@v4
         id: meta
         with: