DRAFT: Make commitlint into a linter

[TylerJang27]

Primarily to support VSCode SCM. Note that we don't support running on files in .git/ right now, so this is just a prototype.

[trunk-io[bot]]

⏱️ 7m total CI duration on this PR

Job	Cumulative Duration	Recent Runs
CodeQL-Build	1m	🟩
Trunk Check runner [linux]	1m	⬜
Linter Tests macOS	1m	⬜
Tool Tests (macOS)	1m	⬜
Linter Tests Linux	1m	⬜
Windows Linter Tests	51s	⬜
Detect changed files	5s	🟩
Aggregate Test Results	1s	🟥
Tool Tests (Linux)	1s	⬜
Repo Tests / Plugin Tests	1s	⬜

_{settings ⋅ feedback ⋅ docs ⋅ learn more about trunk.io}