ci(deps): bump actions/checkout from 3 to 4 in /.github/workflows (#758)

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/pages.yml

@@ -13,7 +13,7 @@ jobs:
     name: Build documentation site and deploy to GH-Pages
     steps:
       - name: Source checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ github.ref }}
 

.github/workflows/pr.yml

@@ -15,7 +15,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup Python 3.13
         uses: actions/setup-python@v5
@@ -65,7 +65,7 @@ jobs:
       pull-requests: read
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
     name: Build, publish, release, and announce
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
           ssh-key: ${{ secrets.DEPLOY_KEY }}

.github/workflows/stage.yml

@@ -14,7 +14,7 @@ jobs:
     name: Build and publish early access to GitHub
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup Python 3.13
         uses: actions/setup-python@v5