build(deps-dev): bump types-pymysql (#1751)

Bumps [types-pymysql](https://github.com/python/typeshed) from 1.1.0.20260518 to 1.2.0.20260722.
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-pymysql
  dependency-version: 1.2.0.20260722
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]