Bump actions/checkout in /.github/workflows in the actions group

Bumps the actions group in /.github/workflows with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `actions/checkout` from 4.2.2 to 5.0.0
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@11bd719...08c6903)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 5.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/test_action.yml

@@ -9,7 +9,7 @@ jobs:
     name: Test action
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
       - id: build
         uses: OpenAstronomy/build-python-dist@9a4b2bd6bda5c48ef3c12b53504ee2263ed032e3  # v1.1.0
         with:
@@ -25,7 +25,7 @@ jobs:
     name: Test action (no keep option specified)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
       - id: build
         uses: OpenAstronomy/build-python-dist@9a4b2bd6bda5c48ef3c12b53504ee2263ed032e3  # v1.1.0
         with: