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

Author: renovate[bot]

.github/workflows/goreleaser.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: denoland/setup-deno@v2.0.4