1.57.9
(fix): Retry backoff now waits on the request context, so a cancelled or expired
context interrupts the wait instead of sleeping through it (previously a
Retry-After of up to 60s could hold a call well past its deadline).
(fix): option.WithoutRetries() is now honored when passed to the client
constructor. Previously the flag was dropped by NewRetrier and only worked
per call. Request-scoped WithMaxAttempts still overrides it.