Reverting .yaml as some things doesn't work (#451)

.github/workflows/build-pull-request.yml

@@ -0,0 +1,39 @@
+name: 'Build pull request'
+
+on:
+  pull_request:
+    types: ['opened', 'synchronize']
+
+jobs:
+  build-pull-request:
+    runs-on: ubuntu-latest
+    env:
+      PR_NUMBER: ${{github.event.number}}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3.0.0
+      - name: Build app
+        run: npm ci && npm run build
+      - name: Upload artifact
+        uses: actions/upload-artifact@v3.0.0
+        with:
+          name: previewbuild
+          path: dist
+          retention-days: 1
+      - name: Get PR info
+        uses: actions/github-script@v6.0.0
+        with:
+          script: |
+            var fs = require('fs');
+            fs.writeFileSync('${{github.workspace}}/pr.json', JSON.stringify(context.payload.pull_request));
+      - name: Upload PR Info
+        uses: actions/upload-artifact@v3.0.0
+        with:
+          name: pr.json
+          path: pr.json
+          retention-days: 1
+      - name: Build Docker image
+        uses: docker/build-push-action@v2.10.0
+        with:
+          context: .
+          push: false