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

Author: renovate[bot]

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
 
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Cache sbt
       uses: actions/cache@v4

.github/workflows/release-sbt.yml

@@ -19,7 +19,7 @@ jobs:
     environment: Release
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - run: |
           git config user.name github-actions
@@ -47,7 +47,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: cucumber/[email protected]
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/version-policy-check.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Cache sbt
         uses: actions/cache@v4