[native] Retry feature flags call

Summary:
Retry feature flags call. If number of tries is exceeded, rethrow an error.

Depends on D8652

Test Plan: Add console logs and simulate failed requests - the requests should be retried up to numberOfTries times with delays.

Reviewers: kamil, bartek

Reviewed By: bartek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D8679