build(deps): bump fixit from 0.1.4 to 2.1.0

Bumps [fixit](https://github.com/Instagram/Fixit) from 0.1.4 to 2.1.0.
- [Changelog](https://github.com/Instagram/Fixit/blob/main/CHANGELOG.md)
- [Commits](Instagram/Fixit@v0.1.4...v2.1.0)

---
updated-dependencies:
- dependency-name: fixit
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Diff for: requirements.txt

@@ -1,6 +1,6 @@
 aiohttp==3.8.6
 cachetools==5.3.1
-fixit==0.1.4
+fixit==2.1.0
 gidgethub==5.3.0
 libcst==1.1.0
 sentry-sdk==1.32.0