Update dependency mapbox-gl-leaflet to v0.0.8

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
mapbox-gl-leaflet	dependencies	patch	0.0.7 -> 0.0.8

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Release Notes

mapbox/mapbox-gl-leaflet

### [`v0.0.8`](https://togithub.com/mapbox/mapbox-gl-leaflet/blob/master/CHANGELOG.md#​008---2019-08-07) [Compare Source](https://togithub.com/mapbox/mapbox-gl-leaflet/compare/v0.0.7...v0.0.8)

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