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

Author: renovate[bot]

.github/workflows/main.yml

@@ -35,15 +35,15 @@ jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
       - uses: pre-commit/action@v3.0.1
   build_action:
     runs-on: ubuntu-latest
     name: Build Action
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
           persist-credentials: false
@@ -107,7 +107,7 @@ jobs:
     needs: build_action
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Generate GitHub App Token
         id: app-token
         uses: actions/create-github-app-token@v3