:arrow_up: Bump geckodriver from 1.20.0 to 1.21.0 (#314)
:arrow_up: Bump geckodriver from 1.20.0 to 1.21.0 (#314)

Bumps [geckodriver](https://github.com/vladikoff/node-geckodriver) from 1.20.0 to 1.21.0.
- [Release notes](https://github.com/vladikoff/node-geckodriver/releases)
- [Commits](https://github.com/vladikoff/node-geckodriver/compare/v1.20.0...v1.21.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
percy/percy-webdriverio,percy/percy-webdriverio