Bump actions/checkout from 3 to 4 (#92)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
       image: ghcr.io/elementary/docker:${{ matrix.version }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install Dependencies
       run: |
         apt update
@@ -38,6 +38,6 @@ jobs:
       image: valalang/lint
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Lint
       run: io.elementary.vala-lint -d .

.github/workflows/merge.yml

@@ -17,7 +17,7 @@ jobs:
         apt-get install git -y
 
     - name: Clone repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         token: ${{ secrets.GIT_USER_TOKEN }}
 

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
      - name: Checkout
-       uses: actions/checkout@v3
+       uses: actions/checkout@v4
 
      - name: Release
        uses: elementary/actions/release@master