Update the default version of Geckodriver installed to v0.29.1

[mdmintz]

Update the default version of Geckodriver installed to v0.29.1.

Currently, Geckodriver v0.29.0 is being used.
(Geckodriver is required for running automation on Firefox)

[mdmintz]

Resolved by #868 and shipped in https://github.com/seleniumbase/SeleniumBase/releases/tag/v1.60.0