Fix path in upload of testing artifacts

Author: mpartipilo

.github/workflows/main.yaml

@@ -124,7 +124,7 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: test-results-integration-slow-${{ matrix.server }}
-          path: TestResults/test-integration-slow-results.trx
+          path: src/Weaviate.Client.Tests/TestResults/test-integration-slow-results.trx
           retention-days: 3
 
       - name: stop weaviate