Auto merge of #124784 - matthiaskrgr:rollup-e9pg3v4, r=matthiaskrgr

Rollup of 3 pull requests

Successful merges:

 - #124742 (Add `rustfmt` cfg to well known cfgs list)
 - #124765 ([rustdoc] Fix bad color for setting cog in ayu theme)
 - #124768 ([resubmission] Meta: Enable the brand new triagebot transfer command)

r? `@ghost`
`@rustbot` modify labels: rollup