Jenkins TEST TARGETS SUMMARY parser got wrong result

[renfeiw]

When there are multiple test targets summary (currently in CRIU testing), the current Jenkins summary parser only parses the first occurrence (due to the Jenkins manager.getLogMatcher behaviour). We need a solution to parse the only one summary output that user wants.

[renfeiw]

PR: #4511, adoptium/TKG#435

[renfeiw]

To prevent summary from docker tests get parsed, we can export an env var to avoid parsing the unwanted summary.
For example, do the following in the docker test command:

export RESULT_COMMENT="IN DOCKER"

in playlist.xml test command. The result summary will look like:

22:50:09  (IN DOCKER) TEST TARGETS SUMMARY
22:50:09  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
22:50:09  PASSED test targets:
22:50:09  	cmdLineTester_criu_keepCheckpoint_0 
22:50:09  	cmdLineTester_criu_keepCheckpoint_1 
22:50:09  	cmdLineTester_criu_keepCheckpoint_2 
22:50:09  	cmdLineTester_criu_keepCheckpoint_3 
22:50:09  	cmdLineTester_criu_keepCheckpoint_4 
22:50:09  	cmdLineTester_criu_keepCheckpoint_5 
22:50:09  
22:50:09  (TOTAL: 6   EXECUTED: 6   PASSED: 6   FAILED: 0   DISABLED: 0   SKIPPED: 0)
22:50:09  ALL TESTS PASSED
22:50:09  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

It then will not be picked up by the Jenkins parser.