added mvn argument fail-at-end (#319)

* added mvn argument fail-at-end

* see mvn version

* see maven version

* -fae

* final version of build.yml

.github/workflows/build.yml

@@ -39,7 +39,7 @@ jobs:
           #  - failsafe.rerunFailingTestsCount => try again for flakey tests, and keep track of/report on number of retries
           - type: "Integration Tests"
             java: 11
-            mvnflags: "-DskipIntegrationTests=false -Denforcer.skip=true -Dcheckstyle.skip=true -Dlicense.skip=true -Dxml.skip=true -Dfailsafe.rerunFailingTestsCount=2"
+            mvnflags: "-DskipIntegrationTests=false -Denforcer.skip=true -Dcheckstyle.skip=true -Dlicense.skip=true -Dxml.skip=true -Dfailsafe.rerunFailingTestsCount=2 -fae"
             resultsdir: "**/target/failsafe-reports/**"
       # Do NOT exit immediately if one matrix job fails
       # This ensures ITs continue running even if Unit Tests fail, or visa versa