Karma test failures do not fail the build on Jenkins and are not reporterd

Similar  to WPM-1138

On Jenkins builds are run with Dmaven.test.failure.ignore to build all modules before collecting test failures. The new maven-frontend-plugin runs the tests in the test phase and does not fail the build on test failures.

The frontend-maven-plugin does not report test failures so test failures will not be found in the build.

Possible solutions:

1. Add junit reporting to Karma. In Java the default reports is named ../target/surefire-reports/TEST-*.xml. Not clear if Jenkins uses a specific pattern to scan test result files.
2. Fail the build if a test fails This can be done by adding configuration to the execute of run testSingleRun:
   <testFailureIgnore>false</testFailureIgnore>

 Likely need to be ported/backported to all relevant builds using the new plugin