ChromeDriver doesn't match Chrome version in Circle browsers image

[cherewaty]

test-agent, test-cli, and test-webdriver jobs on Circle CI are failing.

Error: session not created: This version of ChromeDriver only supports Chrome version 91

It appears the circleci/node:14-browsers image now includes Chrome 93.

[cowboyd]

We need a durable solution for this. Most other frameworks just require chromedriver to be installed as a dependency. If we want to auto-install, we should probably first detect the version of chrome that is actually installed and then work backwards and download the version of chromedriver needed to control it, because it's such a nagging problem.

#308 #885 #887 #894 #935