netopeer2 CI

tests UPDATE uninstall modules after terminating the server #553

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Run time

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Job	Run time
Get git branch	1s
Get git branch	1s
Release, gcc	1m 30s
Release, gcc	1m 30s
Release, clang	1m 33s
Release, clang	1m 33s
Debug, gcc, with URL	4m 40s
Debug, gcc, with URL	4m 40s
Debug, clang	1m 20s
Debug, clang	1m 20s
ASAN and UBSAN	1m 50s
ASAN and UBSAN	1m 29s
	21m 27s