Heading tracking gets backed up when the user moves and rotates simultaneously

[pushian]

**Platform: iOS
**Mapbox SDK version: binary "https://www.mapbox.com/ios-sdk/Mapbox-iOS-SDK.json" ~> 3.7

Steps to trigger behavior

1. self.mapView.userTrackingMode = .followWithHeading
2. walk around with the map

Expected behavior

The user location marker should moving together with the user with certain accurancy

Actual behavior

The user location marker is moving slower than the actual movement and after a while, the marker will be far behind the user's current location. And if the user stops, the marker will then slowly catch up first and at last will has a speed up to the user's stopping location.
In the .none Mode, it is working fine which means the location marker is moving smoothly and seamlessly with the user's actual location

[1ec5]

This is the behavior described in #3625 (comment). This would be fixed as a side effect of supporting concurrent animations instead of canceling the current animation when beginning a new one: #3625.

[1ec5]

Closing in favor of #3625.