Rollup merge of #144063 - jieyouxu:label-ci, r=Kobzol

Add myself to the `infra-ci` reviewer group and adjust some infra auto-labels

- Commit 1 is a drive-by adjustment. Auto-label `src/ci` and `.github/workflows` with https://github.com/rust-lang/rust/labels/A-CI, and include `.github/workflows` for https://github.com/rust-lang/rust/labels/T-infra trigger files.
- Commit 2 adds myself to the `infra-ci` reviewer adhoc group.

r? ``````@Kobzol``````

Author: matthiaskrgr