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)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [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] <[email protected]>

.github/workflows/crystal.yml

@@ -23,7 +23,7 @@ jobs:
       image: crystallang/crystal:1-alpine
     steps:
       - name: crystal_build_checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: crystal_build_build
         working-directory: ./projectdbctl
         run: shards build --verbose --production --release --static --no-debug

.github/workflows/ruby.yml

@@ -37,7 +37,7 @@ jobs:
 
     steps:
       - name: ruby_build_checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: ruby_build_rubysetup
         uses: ruby/setup-ruby@8575951200e472d5f2d95c625da0c7bec8217c42 # v1.161.0
         with:
@@ -51,7 +51,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ruby_lint_checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: ruby_lint_rubysetup
         uses: ruby/setup-ruby@8575951200e472d5f2d95c625da0c7bec8217c42 # v1.161.0
         with: