ci: 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-lint.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Check out pull request's HEAD commit instead of the merge commit to
           # prevent gitlint from failing due to too long commit message titles,
@@ -93,7 +93,7 @@ jobs:
         # Always run this step so that all linting errors can be seen at once.
         if: always()
       - name: Ensure a clean code checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           clean: true
         if: always()

.github/workflows/ci-reproducibility.yml

@@ -31,7 +31,7 @@ jobs:
         build_number: [1, 2]
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # NOTE: We make a git checkout to a unique directory for each build to
           # catch reproducibility issues with code in different local paths.

.github/workflows/docker.yml

@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Check out pull request's HEAD commit instead of the merge commit.
           ref: ${{ github.event.pull_request.head.sha }}

.github/workflows/release-dev.yml

@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Fetch all history as the recommended way to fetch all tags and
           # branches of the project.

.github/workflows/release.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Fetch all history as the recommended way to fetch all tags and
           # branches of the project.