[Task]: Upload JUnit test report for github action runs

[Abacn]

What needs to happen?

Currently the test log only shows a brief summary for failed tests, with truncated traceback. e.g., in https://github.com/apache/beam/actions/runs/5870324548/job/15917132120

> Task :runners:google-cloud-dataflow-java:arm:examplesJavaRunnerV2IntegrationTestARM

org.apache.beam.examples.WordCountIT > testE2EWordCount FAILED
    java.lang.IllegalArgumentException at WordCountIT.java:58
        Caused by: java.lang.ClassNotFoundException at WordCountIT.java:58

org.apache.beam.examples.WindowedWordCountIT > testWindowedWordCountInStreamingStaticSharding FAILED
    java.lang.IllegalArgumentException at WindowedWordCountIT.java:118
        Caused by: java.lang.ClassNotFoundException at WindowedWordCountIT.java:118

org.apache.beam.examples.WindowedWordCountIT > testWindowedWordCountInBatchStaticSharding FAILED
    java.lang.IllegalArgumentException at WindowedWordCountIT.java:118
        Caused by: java.lang.ClassNotFoundException at WindowedWordCountIT.java:118

org.apache.beam.examples.WindowedWordCountIT > testWindowedWordCountInBatchDynamicSharding FAILED
    java.lang.IllegalArgumentException at WindowedWordCountIT.java:118
        Caused by: java.lang.ClassNotFoundException at WindowedWordCountIT.java:118

4 tests completed, 4 failed

Moreover, upload artifact step is skipped if the previous test failed.
This makes no sense because most cases only when test fails we want to look at the test results.

Issue Priority

Priority: 2 (default / most normal work should be filed as P2)

Issue Components

• Component: Python SDK
• Component: Java SDK
• Component: Go SDK
• Component: Typescript SDK
• Component: IO connector
• Component: Beam examples
• Component: Beam playground
• Component: Beam katas
• Component: Website
• Component: Spark Runner
• Component: Flink Runner
• Component: Samza Runner
• Component: Twister2 Runner
• Component: Hazelcast Jet Runner
• Component: Google Cloud Dataflow Runner

[Abacn]

#27996 added reports/tests to actions/upload-artifact@v3 but it does not work -- "Warning: No files were found with the provided path: "/build/test-results//.xml"
"/build/reports/tests//.*". No artifacts will be uploaded."

The test command executing locally indeed generates report in build/reports/tests/**. Need to investigate further

[Abacn]

We now use EnricoMi/publish-unit-test-result-action@v2 and also Archive JUnit Test Results