Bump axios from 0.18.1 to 0.21.1 in /bigbluebutton-html5/tests/puppeteer

Bumps [axios](https://github.com/axios/axios) from 0.18.1 to 0.21.1.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/master/CHANGELOG.md)
- [Commits](https://github.com/axios/axios/compare/v0.18.1...v0.21.1

)

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