Bump @mapbox/polyline from 1.1.0 to 1.1.1

Bumps [@mapbox/polyline](https://github.com/mapbox/polyline) from 1.1.0 to 1.1.1.
- [Release notes](https://github.com/mapbox/polyline/releases)
- [Changelog](https://github.com/mapbox/polyline/blob/master/CHANGELOG.md)
- [Commits](mapbox/polyline@1.1.0...v1.1.1)

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Author: dependabot-preview[bot]