Bump actions/checkout from 4.1.5 to 4.1.6 (#667)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.5 to 4.1.6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@44c2b7a...a5ac7e5)

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

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

.github/workflows/exercises.yml

@@ -17,7 +17,7 @@ jobs:
     name: Perl ${{ matrix.perl }} on ${{ matrix.os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
 
       - name: Set up perl
         uses: shogo82148/actions-setup-perl@28eae78d12c2bba1163aec45d123f6d9228bc307

.github/workflows/generator.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
 
       - run: bin/fetch-configlet
       - run: bin/configlet sync || true