Refactor 'check_pipeline_status' and add 'trigger_pipeline'

Rename 'check_pipeline_status' to 'mirror_pipeline_result' in order to better reflect what the function does.

Move determination of the pipeline out of this function to a new function 'get_pipelines' so that this can be tested separately and we can do different things depending on whether a pipeline exists or not.

Add function 'trigger_pipeline' to trigger a pipeline on a branch.

BCS 746-000635

added 17 commits

• 48cce0c0...5847145f - 16 commits from branch master
• a3b3027f - Refactor 'check_pipeline_status' and add 'trigger_pipeline'

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By Tim Jaacks on 2022-02-28T16:40:00 (imported from GitLab)

added 1 commit

• 5843a494 - Refactor 'check_pipeline_status' and add 'trigger_pipeline'

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By Tim Jaacks on 2022-02-28T16:41:44 (imported from GitLab)

added 1 commit

• 9a496cdb - Refactor 'check_pipeline_status' and add 'trigger_pipeline'

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By Tim Jaacks on 2022-02-28T16:45:22 (imported from GitLab)

Integration merge request: https://gitlab.com/SECO-Northern-Europe/yocto/infrastructure/ci-test/minimal-bar/-/merge_requests/112

By GitBot on 2022-02-28T20:32:53 (imported from GitLab)

Integration merge request: https://gitlab.com/SECO-Northern-Europe/yocto/infrastructure/ci-test/minimal-foo/-/merge_requests/97

By GitBot on 2022-02-28T20:33:24 (imported from GitLab)