[deps]: Update withastro/action action to v4

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Checkout your repository using git
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Install, build, and upload your site output
-        uses: withastro/action@44cbafd43567733e3b007918c6e0711480560516 # v3.0.0
+        uses: withastro/action@063f85a3c9fc861a0a5e5a956225d9031177eff9 # v4.0.0
 
   deploy:
     name: Deploy