ci: extend workflow to validate builds on PRs (#41)

Renames publish-docs to continuous-delivery and extends it to build
documentation on all pull requests. This ensures that builds are
validated before merging while maintaining the same deployment behavior
for the main branch.

The deploy job runs conditionally only when on the main branch,
supporting both push events and manual workflow_dispatch.

Signed-off-by: Marco Nenciarini <marco.nenciarini@enterprisedb.com>

Author: mnencia

.github/workflows/publish-docs.yml .github/workflows/continuous-delivery.yml.github/workflows/publish-docs.yml renamed to .github/workflows/continuous-delivery.yml

@@ -1,9 +1,10 @@
-# This workflow builds and deploys the Docusaurus documentation to GitHub Pages
-# when changes are pushed to the main branch.
-name: Deploy Docusaurus to GitHub Pages
+# This workflow builds the Docusaurus documentation on pull requests
+# and deploys it to GitHub Pages when changes are pushed to main.
+name: Continuous Delivery
 
 on:
   workflow_dispatch:
+  pull_request:
   push:
     branches:
       - main
@@ -19,7 +20,7 @@ concurrency:
 permissions: read-all
 
 jobs:
-  build:
+  Build:
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -38,6 +39,7 @@ jobs:
           cache-dependency-path: website/yarn.lock
 
       - name: Setup Pages
+        if: github.ref == 'refs/heads/main'
         uses: actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b # v5
 
       - name: Install dependencies
@@ -49,18 +51,20 @@ jobs:
         run: yarn build
 
       - name: Upload artifact
+        if: github.ref == 'refs/heads/main'
         uses: actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b # v4
         with:
           path: website/build
 
-  deploy:
+  Deploy:
+    if: github.ref == 'refs/heads/main'
     permissions:
       pages: write
       id-token: write
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
-    needs: build
+    needs: Build
     runs-on: ubuntu-latest
     steps:
       - name: Deploy to GitHub Pages