build(deps): 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/docker-builds.yml

@@ -28,7 +28,7 @@ jobs:
             image: cfssl/cfssl
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/go.yml

@@ -50,7 +50,7 @@ jobs:
       - run: psql -c 'create database certdb_development;' -U postgres;
       - run: mysql -e 'create database certdb_development;' -u root;
       - run: mysql -e 'SET global sql_mode = 0;' -u root;
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Go
         uses: actions/setup-go@v4
@@ -73,6 +73,6 @@ jobs:
       - uses: actions/setup-go@v4
         with:
           go-version: 1.18
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3

.github/workflows/snapshot.yml

@@ -9,7 +9,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: make snapshot
       - name: Archive snapshot artifacts
         uses: actions/upload-artifact@v3