Conversion of point to map's coordinate is slightly off between v6 and v10

Nobody has claimed this yet.

## Environment

- Xcode version: 13.2.1
- iOS version: 15.2
- Devices affected: simulator and devices
- Maps SDK Version: 10.2.0

## Observed behavior and steps to reproduce
I'm having this setup in `v6` to get the viewport from map's bounds
```
let mapSize = self.bounds
let topRightPoint = CGPoint(x: mapSize.maxX, y: mapSize.minY)
let topRight = self.convert(topRightPoint, toCoordinateFrom: self)

let topLeftPoint = CGPoint(x: mapSize.minX, y: mapSize.minY)
let topLeft = self.convert(topLeftPoint, toCoordinateFrom: self)

let bottomLeftPoint = CGPoint(x: mapSize.minX, y: mapSize.maxY)
let bottomLeft = self.convert(bottomLeftPoint, toCoordinateFrom: self)

let bottomRightPoint = CGPoint(x: mapSize.maxX, y: mapSize.maxY)
let bottomRight = self.convert(bottomRightPoint, toCoordinateFrom: self)

let centerPoint = CGPoint(x: mapSize.midX, y: mapSize.midY)
let center = self.convert(centerPoint, toCoordinateFrom: self)

return Viewport(center: center, topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft, zoomLevel: zoomLevel)
```

I'm trying to migrate it to `v10` like bellow
```
let mapSize = self.bounds
let topRightPoint = CGPoint(x: mapSize.maxX, y: mapSize.minY)
let topRight = mapboxMap.coordinate(for: topRightPoint)

let topLeftPoint = CGPoint(x: mapSize.minX, y: mapSize.minY)
let topLeft = mapboxMap.coordinate(for: topLeftPoint)

let bottomLeftPoint = CGPoint(x: mapSize.minX, y: mapSize.maxY)
let bottomLeft = mapboxMap.coordinate(for: bottomLeftPoint)

let bottomRightPoint = CGPoint(x: mapSize.maxX, y: mapSize.maxY)
let bottomRight = mapboxMap.coordinate(for: bottomRightPoint)

let centerPoint = CGPoint(x: mapSize.midX, y: mapSize.midY)
let center = self.mapboxMap.coordinate(for: centerPoint)

return Viewport(center: center, topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft, zoomLevel: zoomLevel)
```

But they are return the different results. In term of coordinate it's a big different and impact the result
Here's an example of results. From `v6`
```
let center = CLLocationCoordinate2D(latitude: 51.50852749999882, longitude: -0.11690900001943305)
let topLeft = CLLocationCoordinate2D(latitude: 51.51029813371716, longitude: -0.11847939158212739)
let topRight = CLLocationCoordinate2D(latitude: 51.51029813371716, longitude: -0.11533860845673871)
let bottomRight = CLLocationCoordinate2D(latitude: 51.506756797466124, longitude: -0.11533860845673871)
let bottomLeft = CLLocationCoordinate2D(latitude: 51.506756797466124, longitude: -0.11847939158212739)
```
From `v10`
```
let center = CLLocationCoordinate2D(latitude: 51.50852750000044, longitude: -0.11690900000149895)
let topLeft = CLLocationCoordinate2D(latitude: 51.51024311546047, longitude: -0.11843059443560833)
let topRight = CLLocationCoordinate2D(latitude: 51.51027493029375, longitude: -0.11535918816787216)
let bottomRight = CLLocationCoordinate2D(latitude: 51.50677690990716, longitude: -0.1153564453125)
let bottomLeft = CLLocationCoordinate2D(latitude: 51.50676052129944, longitude: -0.11847608905304696)
```
## Expected behavior
Result should be the same in both setup

Start by comparing the v6 conversion calls with the v10 `mapboxMap.coordinate(for:)` entry point using the reproduction coordinates and device details in the report. Investigate why corner coordinates differ, then verify that the center and viewport corners match the expected v6 results across the listed simulator and device environments.

Written by the indexing model from the issue text.