feat: update API specifications (#66)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: deepgram-robot

openapi.yml

@@ -548,7 +548,7 @@ paths:
       security:
         - ApiKeyAuth: []
       operationId: grantToken
-      description: Generates a temporary JSON Web Token (JWT) with a 30-second TTL and usage::write permission for core voice APIs, requiring an API key with Member or higher authorization
+      description: Generates a temporary JSON Web Token (JWT) with a 30-second TTL and usage::write permission for core voice APIs, requiring an API key with Member or higher authorization. Tokens created with this endpoint will not work with the Management APIs.
       responses:
         '200':
           $ref: '#/components/responses/jwt'