[7.x] Bump actions/checkout from 5.0.1 to 6.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.1 to 6.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@93cb6ef...1af3b93)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
         - 8
         - 21
     steps:
-    - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+    - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
     - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
       with:
         java-version: ${{matrix.java}}
@@ -50,7 +50,7 @@ jobs:
     strategy:
       fail-fast: false
     steps:
-    - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+    - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
     - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
       with:
         java-version: 21

.github/workflows/doc.yml

@@ -15,7 +15,7 @@ jobs:
         java-version: 8
         distribution: temurin
     - uses: sbt/setup-sbt@3e125ece5c3e5248e18da9ed8d2cce3d335ec8dd # v1.1.14
-    - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+    - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       with:
         ref: ${{ github.event.pull_request.head.sha }}
     - name: Install pandoc