fix: pass contact form url secret to pages build

Author: sametbasbug

.github/workflows/deploy.yml

@@ -23,6 +23,8 @@ jobs:
 
       - name: Install, build, and upload your site
         uses: withastro/action@v2
+        env:
+          PUBLIC_CONTACT_FORM_URL: ${{ secrets.PUBLIC_CONTACT_FORM_URL }}
         # with:
           # path: . # The root location of your Astro project inside the repository. (optional)
           # node-version: 20 # The specific version of Node that should be used to build your site. Defaults to 20. (optional)