Bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/linux.yml

@@ -34,7 +34,7 @@ jobs:
     container:
       image: perl:${{ matrix.perl-version }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: perl -V
         run: perl -V
       - name: Install Dependencies

.github/workflows/macos.yml

@@ -32,7 +32,7 @@ jobs:
           # - '5.12'
           - '5.10'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup perl
         uses: shogo82148/actions-setup-perl@v1
         with:

.github/workflows/windows.yml

@@ -39,7 +39,7 @@ jobs:
         run: |
           git config --global core.autocrlf false
           git config --global core.eol lf
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: perl -V
         run: perl -V
       - name: Ensure old Strawberries have a good toolchain