chore: remove reviewer checklist from PR template

## What

Removed the "Reviewer" section and its labeling checklist item from the
pull request template.

## Why

Labeling is handled by our auto-labeler GitHub Action

## Notes

- PRs will no longer prompt reviewers to apply labels — it is automated

Signed-off-by: jmeridth <jmeridth@gmail.com>

Author: jmeridth

.github/pull_request_template.md

@@ -21,7 +21,3 @@ examples: "feat: add new logger" or "fix: remove unused imports"
 - [ ] run `make lint` and fix any issues that you have introduced
 - [ ] run `make test` and ensure you have test coverage for the lines you are introducing
 - [ ] If publishing new data to the public (scorecards, security scan results, code quality results, live dashboards, etc.), please request review from `@jeffrey-luszcz`
-
-### Reviewer
-
-- [ ] Label as either `bug`, `documentation`, `enhancement`, `infrastructure`, `maintenance` or `breaking`