[CP] 11.3.0 SDK version bump

[evil159]

What does this pull request do?

Cherry-pick of https://github.com/mapbox/mapbox-maps-flutter/pull/482 to release/v1.0

What is the motivation and context behind this change?

Pull request checklist:

• [ ] Add a changelog entry.
• [ ] Write tests for all new functionality. If tests were not written, please explain why.
• [ ] Add documentation comments for any added or updated public APIs.