chore(gha): bump actions/checkout from 5 to 6 (#139)

Author: dependabot[bot]

.github/workflows/build-java.yml

@@ -30,7 +30,7 @@ jobs:
           - 21
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-java@v5
         with:
           java-version: ${{ matrix.java }}

.github/workflows/release-create-R-release-branch.yml

@@ -13,7 +13,7 @@ jobs:
         working-directory: ./R/bpmnLayoutGeneratoR
     steps:
       - name: Setup checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # Use a PAT to ensure that
           #   commits are authored with a specific user

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
           echo "Version: ${{ env.VERSION }}"
 
       - name: Setup checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # Use a PAT to ensure that
           #   commits are authored with a specific user