Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/gh-pages.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup Ruby
         uses: ruby/setup-ruby@a4effe49ee8ee5b8b5091268c473a4628afb5651 # v1.245.0
         with:

.github/workflows/macos.yml

@@ -6,7 +6,7 @@ jobs:
   build:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Install dependencies
       run: |
         gem install bundler --no-document

.github/workflows/push_gem.yml

@@ -28,7 +28,7 @@ jobs:
         with:
           egress-policy: audit
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: true
 

.github/workflows/ubuntu.yml

@@ -9,7 +9,7 @@ jobs:
         ruby: [ head, 3.3, 3.2, 3.1, 3.0 ]
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}

.github/workflows/windows.yml

@@ -9,7 +9,7 @@ jobs:
       matrix:
         ruby: [ 'mingw', 'mswin', '3.3' ]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         submodules: true
     - name: Set up Ruby