Update actions/checkout action to v4 (#961)

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

Author: renovate[bot]

.github/workflows/docker.yaml

@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: 1.21.1
@@ -45,7 +45,7 @@ jobs:
         with:
           github_app_id: ${{ secrets.E2E_SETUP_GITHUB_APP_ID }}
           github_app_private_key: ${{ secrets.E2E_SETUP_GITHUB_APP_PRIVATE_KEY }}
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           token: ${{ steps.octoken.outputs.token }}
           repository: int128/argocd-commenter-e2e-test

.github/workflows/release.yaml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: kustomize edit set image controller='ghcr.io/${{ github.repository }}:${{ github.ref_name }}'
         working-directory: config/manager
       - run: kustomize build config/default > /tmp/argocd-commenter.yaml