chore: withastro/action を v2 に更新

Author: SatooRu65536

Diff for: .github/workflows/deploy.yml

@@ -19,10 +19,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout your repository using git
+      - name: Checkout repository
         uses: actions/checkout@v4
-      - name: Install, build, and upload your site
-        uses: withastro/action@v1
+      - name: Install, build, and upload this site
+        uses: withastro/action@v2
         with:
           node-version: 20