chore(deps): bump actions/checkout from 5 to 6 (#116)

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -15,7 +15,7 @@ jobs:
         version: [11, 17, 21]
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install java
         uses: actions/setup-java@v5
@@ -49,7 +49,7 @@ jobs:
       actions: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # we need to fetch all existing git tags
           fetch-depth: 0