Bump actions/checkout from 5 to 6 (#425)

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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/codeql-analysis.yml

@@ -41,7 +41,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 'Set up JDK'
         uses: actions/setup-java@v5

.github/workflows/maven.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: 'Check keystore'
         run: |    
@@ -31,7 +31,7 @@ jobs:
         java-dist: [ 'temurin' ]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK for build
         uses: actions/setup-java@v5
@@ -68,7 +68,7 @@ jobs:
       contents: read
     if: ${{ github.ref == 'refs/heads/master' && ( github.event_name == 'push' || github.event_name == 'workflow_dispatch' ) }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: 'Set up JDK'
         uses: actions/setup-java@v5

.github/workflows/owasp.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK
         uses: actions/setup-java@v5