build(deps): bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  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

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:

.github/workflows/codeql-analysis.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
 

.github/workflows/development.yaml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Set up JDK 21
       uses: actions/setup-java@v5
       with:
@@ -36,7 +36,7 @@ jobs:
       MAVEN_CLI_OPTS: "--batch-mode --errors --fail-at-end --show-version"
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Set up JDK 21
       uses: actions/setup-java@v5
       with:
@@ -38,7 +38,7 @@ jobs:
       MAVEN_CLI_OPTS: "--batch-mode --errors --fail-at-end --show-version"
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up JDK 21
         uses: actions/setup-java@v5
         with: