Update gcc to 12.1.0 final

gcc 12.1 final has been released. We should update to it instead of sticking with a close-to-release snapshot.

changed milestone to %goofy alpha

added Doing goofyalpha labels

set weight to 3

assigned to @bero

added to epic &125

changed iteration to Oniro Core Iterations May 1, 2022 - May 31, 2022

!109 (merged)

closed

added teamtoolchain label

removed Doing label