Merge pull request #507 from deepgram/revert/keyterms

revert: keyterm -> keyterms

Merge pull request #502 from deepgram/feat/keyterms+nova-3

Feat/keyterms+nova 3

Release voice agent API (#497)

* Agent API Early Access

* adds changes for API GA

* additional changes for API GA

* reverts FunctionCallingMessage to FunctionCalling

* resolved code review

* adds InjectionRefused

* updates readme with agent examples

* adds 3rd party TTS options

* resolves linter errors in Readme

* runs make lint

* readme lint fixes

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Co-authored-by: David vonThenen <12752197+dvonthenen@users.noreply.github.com>

Merge pull request #490 from gerrymeixiong/gm/thread-cls-override

Add threading.Thread Class Override

Merge pull request #487 from deepgram/pin-websockets-version

pin the version of the websockets dependency to 12 or 13