[Improved, Fixed] More reliable web voice interviews

Improvements

• Calls that do not connect within eight seconds are now automatically retried (up to two times), significantly reducing the chance of a failed connection for both recruiters and candidates

Fixes

• Resolved the issue that prevented many Android users (Chrome and Samsung Internet) from connecting to Retell voice interviews
• Fixed a rare case where the microphone could stay locked after a completed call, blocking the next interview attempt