Refactor Ci::Build#group_name [RUN ALL RSPEC] [RUN AS-IF-FOSS]

Merged drew stachon requested to merge fix-build-group-name into master

What does this MR do?

This merge request removes matrix brackets : [...] and parallelization digits X Y / X/Y / X\Y from the end of build names only before grouping, leaving prefix and infix matches intact.


See the new specs added for the changes, they are most of the previously used pairs but with some changes.

Does this MR meet the acceptance criteria?


Availability and Testing

Edited by drew stachon