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/ci.yml

@@ -19,7 +19,7 @@ jobs:
     outputs:
       go: ${{ steps.filter.outputs.go }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: dorny/paths-filter@v2
       id: filter
       with:
@@ -34,7 +34,7 @@ jobs:
     if: ${{ needs.check-changes.outputs.go == 'true' }}
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: magnetikonline/action-golang-cache@v3
       with:
         go-version-file: go.mod
@@ -52,7 +52,7 @@ jobs:
     if: ${{ needs.check-changes.outputs.go == 'true' }}
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: magnetikonline/action-golang-cache@v3
       with:
         go-version-file: go.mod