Changes to Create or wait for a script workflow agent task step

added the new optional request property allowRedelegation

added the non-success response with the status 403

added the non-success response with the status 409

added the non-success response with the status 422

added the new optional request property dependsOn

added the new optional request property allowCustomModel

added the new optional request property routingNote

added the new optional request property routingReason

added the new draft enum value to the status response property for the response status 202

added the media type application/json for the response with the status 200

added the media type application/json for the response with the status 202

added the media type application/json for the response with the status 404

the agentId request property format was generalized from uuid to no format

endpoint added