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

Author: renovate[bot]

.github/workflows/check-build.yml

@@ -8,7 +8,7 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup pnpm
         uses: pnpm/[email protected]
         with:

.github/workflows/deploy.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install, build, and upload your site output
         uses: withastro/action@v4
         with: