build(deps): bump pymysql from 1.1.3 to 1.2.0 in /src

Bumps [pymysql](https://github.com/PyMySQL/PyMySQL) from 1.1.3 to 1.2.0.
- [Release notes](https://github.com/PyMySQL/PyMySQL/releases)
- [Changelog](https://github.com/PyMySQL/PyMySQL/blob/main/CHANGELOG.md)
- [Commits](https://github.com/PyMySQL/PyMySQL/compare/v1.1.3...v1.2.0)

---
updated-dependencies:
- dependency-name: pymysql
  dependency-version: 1.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

src/requirements.txt

@@ -11,7 +11,7 @@ tcconfig==0.30.1
 sqlalchemy==2.0.49
 sqlalchemy_utils==0.42.1
 psycopg[binary]==3.3.4
-PyMySQL==1.1.3
+PyMySQL==1.2.0
 tzlocal==5.3.1
 python-jose==3.5.0
 pydantic==2.13.4