adding the maintenance track annotation and badge

General MR

Summary

adding the maintenance track annotation and badge

Relevant logs/screenshots

n/a

Linked Issue

big-bang/bigbang#2418 (closed)

Upgrade Notices

n/a

changed milestone to %2.42.0

added kinddocs priority8 skip-bb-mr statusdoing labels

assigned to @andrewshoell

marked this merge request as ready

added statusreview label and removed statusdoing label

requested review from @steven.donald, @blairbowden, @peter.sigur, @piotr.machaj, @kliu, @kscheunemann, @bjacksonfv, and @zcallahan

approved this merge request

merged

mentioned in commit 83b83e2c