Store WordPress "build" directory as an artifact to enable live previews with Playground

.github/workflows/end-to-end-tests.yml

@@ -134,6 +134,14 @@ jobs:
             path: artifacts
             if-no-files-found: ignore
 
+      - name: Upload the build directory as GitHub artifact
+        uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
+        if: always()
+        with:
+            name: wordpress-build
+            path: build
+            if-no-files-found: ignore
+
       - name: Ensure version-controlled files are not modified or deleted
         run: git diff --exit-code
 

.github/workflows/test-npm.yml

@@ -89,6 +89,14 @@ jobs:
       - name: Build WordPress in /src
         run: npm run build:dev
 
+      - name: Upload the build directory as GitHub artifact
+        uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
+        if: always()
+        with:
+            name: wordpress-build-dev
+            path: build
+            if-no-files-found: ignore
+
       - name: Clean after building in /src
         run: npm run grunt clean -- --dev
 
@@ -98,6 +106,14 @@ jobs:
       - name: Build WordPress
         run: npm run build
 
+      - name: Upload the build directory as GitHub artifact
+        uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
+        if: always()
+        with:
+            name: wordpress-build-dev
+            path: build
+            if-no-files-found: ignore
+
       - name: Clean after building
         run: npm run grunt clean