Bump actions/checkout from 4.2.2 to 6.0.2

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.2 to 6.0.2.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4.2.2...v6.0.2)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -4,7 +4,7 @@ jobs:
     dialyzer:
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4.2.2
+            - uses: actions/checkout@v6.0.2
 
             - id: beam
               uses: erlef/setup-beam@v1.18.2
@@ -52,7 +52,7 @@ jobs:
         runs-on: ubuntu-latest
 
         steps:
-            - uses: actions/checkout@v4.2.2
+            - uses: actions/checkout@v6.0.2
 
             - id: beam
               uses: erlef/setup-beam@v1.18.2