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

Author: renovate[bot]

.github/workflows/build-pr.yml

@@ -10,7 +10,7 @@ jobs:
         os: [ubuntu-latest, windows-latest, macos-latest]
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5
       - name: Setup Java

.github/workflows/publish.yml

@@ -22,7 +22,7 @@ jobs:
       id-token: write # to enable use of OIDC for npm provenance
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Setup Node.js