Implement retry logic in case of HTTP response code 429

[neonidian]

See https://docs.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/connectors-using?tabs=cURL#rate-limiting-for-connectors

Useful link - https://docs.microsoft.com/en-us/microsoftteams/platform/bots/how-to/rate-limit#handle-http-429-responses