Upgrade: bump actions/checkout from 3 to 4

Bumps [actions/checkout](/~https://github.com/actions/checkout) from 3 to 4.
- [Release notes](/~https://github.com/actions/checkout/releases)
- [Changelog](/~https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/golint.yml

@@ -12,7 +12,7 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version-file: go.mod

.github/workflows/integration.yml

@@ -41,7 +41,7 @@ jobs:
           - 5053:5053/tcp
           - 5053:5053/udp
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-go@v4