Changes to Start real-time speech-to-text on a leg

added the new speechmatics enum value to the request property provider

added the new optional request property eager_eot_threshold

added the new optional request property endpointing

added the new optional request property eot_threshold

added the new optional request property eot_timeout_ms

added the new optional request property keyterms

added the new optional request property language_hints

added the new optional request property model

added the new optional request property utterance_end_ms

added the new azure enum value to the request property provider

added the new deepgram_flux enum value to the request property provider

removed the enum value azure of the request property provider

added the new azure enum value to the request property provider

the request property language became required

removed the required property leg_id from the response with the 200 status

added the new optional request property provider

the request property partial with a default value became required

the request property language became optional

the request property partial became optional

added the required property leg_id to the response with the 200 status

the request property language became required

removed the required property leg_id from the response with the 200 status

the request property partial with a default value became required