Fix GitLab check-whitespace and check-style CI jobs

There is an issue in the GitLab check-whitespace and check-style CI jobs where base commit is not being set correctly. Fix this.

changed milestone to %Git 2.49

added bugfunctional devopssystems groupgit sectioncore platform typebug labels

assigned to @justintobler

added workflowin review label

Raised !302 (closed) and has been sent to the mailing list: https://lore.kernel.org/git/20250131173938.3592899-1-jltobler@gmail.com/T/#u

Merged to next with 0ca6b46d.

closed

added workflowcomplete label and removed workflowin review label