Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](actions/checkout@v3...v4)

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

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

.github/workflows/checks.yml

@@ -15,7 +15,7 @@ jobs:
         fasterer: ['~> 0.10.0', '~> 0.11.0', '< 1.0']
       fail-fast: false
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: use specific fasterer version
       run: echo "gem 'fasterer', '${{ matrix.fasterer }}'" > Gemfile.local
     - uses: ruby/setup-ruby@v1

.github/workflows/push_gem.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           egress-policy: audit
 
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@cbb722410c2e876e24abbe8de2cc27693e501dcb # v4.2.2
 
       - uses: ruby/setup-ruby@4a9ddd6f338a97768b8006bf671dfbad383215f4 # v1.207.0
         with: