chore(deps): bump got and @mongodb-js/mongodb-downloader (#149)

Bumps [got](https://github.com/sindresorhus/got) and [@mongodb-js/mongodb-downloader](https://github.com/mongodb-js/devtools-shared). These dependencies needed to be updated together.

Updates `got` from 8.3.2 to 11.8.6
- [Release notes](https://github.com/sindresorhus/got/releases)
- [Commits](sindresorhus/got@v8.3.2...v11.8.6)

Updates `@mongodb-js/mongodb-downloader` from 0.2.0 to 0.2.8
- [Commits](https://github.com/mongodb-js/devtools-shared/compare/@mongodb-js/[email protected]...@mongodb-js/[email protected])

---
updated-dependencies:
- dependency-name: got
  dependency-type: indirect
- dependency-name: "@mongodb-js/mongodb-downloader"
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]