Bump actions/checkout from 3 to 4 (#545)

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
...

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

.github/workflows/antsibull-build.yml

@@ -37,19 +37,19 @@ jobs:
 
     steps:
       - name: Check out antsibull
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: antsibull
 
       - name: Check out dependent project antsibull-changelog
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ansible-community/antsibull-changelog
           path: antsibull-changelog
           ref: ${{ matrix.antsibull_changelog_ref }}
 
       - name: Check out dependent project antsibull-core
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ansible-community/antsibull-core
           path: antsibull-core

.github/workflows/build-dumb-pypi.yml

@@ -75,15 +75,15 @@ jobs:
         } >> ${GITHUB_OUTPUT}
 
     - name: Check out antsibull
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: >-
         Check out ${{
           steps.build-settings.outputs.ansible-build-data-slug
         }}@${{
           steps.build-settings.outputs.ansible-build-data-ref
         }} src from Git
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         path: ansible-build-data
         ref: ${{ steps.build-settings.outputs.ansible-build-data-ref }}
@@ -137,7 +137,7 @@ jobs:
         }}@${{
           steps.build-settings.outputs.ansible-core-ref
         }} src from Git
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         path: ansible--ansible--devel
         ref: ${{ steps.build-settings.outputs.ansible-core-ref }}

.github/workflows/nox.yml

@@ -55,7 +55,7 @@ jobs:
     name: "Run nox ${{ matrix.session }} session"
     steps:
       - name: Check out antsibull
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: antsibull
       - name: Install extra packages