Bump jsdom from 15.0.0 to 15.1.1 (#1210)

Bumps [jsdom](https://github.com/jsdom/jsdom) from 15.0.0 to 15.1.1.
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Changelog](https://github.com/jsdom/jsdom/blob/master/Changelog.md)
- [Commits](jsdom/jsdom@15.0.0...15.1.1)

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