Bump actions/checkout from 3 to 4 (#146)

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

.github/workflows/deploy.yml

@@ -16,7 +16,7 @@ jobs:
       SETUPTOOLS_SCM_PRETEND_VERSION: ${{ github.event.inputs.version }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Build and Check Package
       uses: hynek/[email protected]
@@ -30,7 +30,7 @@ jobs:
       contents: write  # For tag.
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Download Package
       uses: actions/download-artifact@v3

.github/workflows/test.yml

@@ -21,7 +21,7 @@ jobs:
   package:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build and Check Package
         uses: hynek/[email protected]
 
@@ -35,7 +35,7 @@ jobs:
         python: ["3.8", "3.9", "3.10", "3.11", "3.12"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Download Package
       uses: actions/download-artifact@v3