bbsim: job failures logged but success reported

A bbsim unit test job was initiated by a pull request/commit.

Errors were captured in the logs but overall the job reported SUCCESS.

https://jenkins.opencord.org/job/verify_bbsim_unit-test/1147/console

• 12:19:02 error in funcparserlib setup command: use_2to3 is invalid.

Coverage reporting may be considered optional but the fact expected files are MIA should have failed this job:
12:20:56 [Cobertura] Publishing Cobertura coverage report...12:20:56 12:20:57 [Cobertura] Publishing Cobertura coverage results...12:20:57 12:20:57 [Cobertura] Cobertura coverage report found.12:20:57 12:20:57 Source file mentioned in coverage report not found: /w/workspace/verify_bbsim_unit-test/github.com/opencord/bbsim/internal/bbsim/responders/dhcp/dhcp_server.go*12:20:57* Source file mentioned in coverage report not found: /w/workspace/verify_bbsim_unit-test/github.com/opencord/bbsim/internal/common/omci/image.go
12:20:57 Source file mentioned in coverage report not found: /w/workspace/verify_bbsim_unit-test/github.com/opencord/bbsim/internal/common/omci/delete.go
12:20:57 Source file mentioned in coverage report not found: /w/workspace/verify_bbsim_unit-test/github.com/opencord/bbsim/internal/bbsim/packetHandlers/packet_tags.go
12:20:57 Source file mentioned in coverage report not found: /w/workspace/verify_bbsim_unit-test/github.com/opencord/bbsim/internal/bbsim/devices/onu_test_helpers.go