Use renovate to automate our `browserslist` data

[umpox]

Browserslist recommend that you update caniuse-lite at regularly through the following command:

npx browserslist@latest --update-db

We should be able to automate this through Renovate so we don't forget.

Further context: https://github.com/browserslist/browserslist#browsers-data-updating Our renovate config: https://github.com/sourcegraph/renovate-config Slack thread: https://sourcegraph.slack.com/archives/C01LTKUHRL3/p1634557982207800

[github-actions[bot]]

Heads up @umpox @valerybugakov @5h1ru @pdubroy @taylorsperry - the "team/frontend-platform" label was applied to this issue.

[shivanshsharma13]

Hi Team, is this issue up for taking?