Bump yarl from 1.13.1 to 1.15.2 in /gremlin-python/src/main/python

Bumps [yarl](https://github.com/aio-libs/yarl) from 1.13.1 to 1.15.2.
- [Release notes](https://github.com/aio-libs/yarl/releases)
- [Changelog](https://github.com/aio-libs/yarl/blob/master/CHANGES.rst)
- [Commits](https://github.com/aio-libs/yarl/compare/v1.13.1...v1.15.2)

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

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