Consolidate GitHub Actions workflow (#96)

* chore: merge build and deploy jobs

* Use latest upload-pages-artifact

* Use upload-artifact v4

.github/workflows/deploy.yml

@@ -15,8 +15,11 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build:
+  deploy:
     runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - uses: actions/checkout@v4
         with:
@@ -59,13 +62,6 @@ jobs:
         with:
           name: github-pages
           path: ./_site
-  deploy:
-    needs: build
-    runs-on: ubuntu-latest
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-    steps:
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4