chore(deps): update actions/checkout action to v6 (#715)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci-build-workflow.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
 
@@ -54,7 +54,7 @@ jobs:
     name: Security Testing
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5

.github/workflows/prepare-release.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Java
         uses: actions/setup-java@v5

.github/workflows/release-workflow.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up JDK 21
       uses: actions/setup-java@v5
       with: