Update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/codeql.yml

@@ -57,7 +57,7 @@ jobs:
         # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Java
       uses: actions/setup-java@v5

.github/workflows/quality.yml

@@ -20,7 +20,7 @@ jobs:
       security-events: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Java
         uses: actions/setup-java@v5
         with:
@@ -46,7 +46,7 @@ jobs:
       security-events: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Java
         uses: actions/setup-java@v5
         with:
@@ -72,7 +72,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Java
         uses: actions/setup-java@v5
         with:
@@ -107,7 +107,7 @@ jobs:
       WORKFLOW_PAT: ${{ secrets.WORKFLOW_PAT }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           token: ${{ env.WORKFLOW_PAT }}
       - name: Set up Java
@@ -147,7 +147,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Java
         uses: actions/setup-java@v5
         with:
@@ -165,7 +165,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Java
         uses: actions/setup-java@v5
         with:
@@ -185,7 +185,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Java
         uses: actions/setup-java@v5
         with:
@@ -220,7 +220,7 @@ jobs:
       WORKFLOW_PAT: ${{ secrets.WORKFLOW_PAT }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           token: ${{ env.WORKFLOW_PAT }}
       - name: Set up Java

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
       packages: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Java
         uses: actions/setup-java@v5
         with: