fix: github action test report on pull requests (#338)

.github/workflows/build.yml

@@ -57,23 +57,13 @@ jobs:
           name: TestResults
           path: tests/Unit/TestResults/*.trx
 
-  report:
-    needs: build
-    if: github.event.pull_request.head.repo.full_name == github.repository
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Download test results
-      uses: actions/download-artifact@v2
-      with:
-        name: TestResults
-
-    - name: Report tests
-      uses: dorny/test-reporter@v1
-      with:
-        name: Unit tests
-        path: TestResults/*.trx
-        reporter: dotnet-trx
+      - name: Report tests
+        if: ${{ ! (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository) }}
+        uses: dorny/test-reporter@v1
+        with:
+          name: Unit tests
+          path: tests/Unit/TestResults/*.trx
+          reporter: dotnet-trx
 
   prerelease:
     runs-on: ubuntu-latest