build(deps): 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] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       matrix:
         ruby: ["3.1", "3.2", "3.3", "3.4", "head"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: rm Gemfile.lock
       - uses: ruby/setup-ruby@v1
         with:
@@ -39,7 +39,7 @@ jobs:
         plat: [ "ubuntu", "macos" ]
     runs-on: ${{matrix.plat}}-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.4"
@@ -54,7 +54,7 @@ jobs:
         plat: [ "ubuntu", "macos" ]
     runs-on: ${{matrix.plat}}-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.4"

.github/workflows/upstream.yml

@@ -20,7 +20,7 @@ jobs:
       matrix:
         ruby: ["3.3"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{matrix.ruby}}
@@ -45,7 +45,7 @@ jobs:
     env:
       RAILSOPTS: --git=https://github.com/rails/rails --ref=${{ matrix.ref }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.3"
@@ -64,7 +64,7 @@ jobs:
     env:
       RAILSOPTS: --git=https://github.com/rails/rails --ref=${{ matrix.ref }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.3"