[tests] add test and problem report uploading to the server test workflow (#94)

* [tests] upload test report artifacts

* try full path

* add problem report

* path goofery

* try inlining upload

* +++

* ---

* ${{ github.workspace }}

* ///

* pluginVerifier

* inline (again)

* moar pathery

* --

Author: pq

.github/workflows/presubmit.yaml

@@ -93,7 +93,14 @@ jobs:
         run: |
           ./gradlew :test --tests "com.jetbrains.dart.analysisServer.*"
         working-directory: third_party
-
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+         name: build
+         path: |
+           **/build/reports/
+           **/build/test-results/
   # Job 4: Verify Plugin
   verify-plugin:
     needs: build-plugin