Bump yarl from 1.4.1 to 1.4.2
Bump yarl from 1.4.1 to 1.4.2

Bumps [yarl](https://github.com/aio-libs/yarl) from 1.4.1 to 1.4.2.
- [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/v1.4.1...v1.4.2)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
aio-libs/sockjs