Changes to Update GitLab integration

removed the media type text/plain for the response with the status 400

removed the media type text/plain for the response with the status 403

removed the media type text/plain for the response with the status 409

removed the media type text/plain for the response with the status 429

removed the required property error from the response with the 404 status

added the media type application/json for the response with the status 400

added the media type application/json for the response with the status 401

added the media type application/json for the response with the status 403

added the media type application/json for the response with the status 409

added the media type application/json for the response with the status 429

added the optional property issues to the response with the 404 status

added the optional property missingPermissions to the response with the 404 status

added the required property code to the response with the 404 status

added the required property message to the response with the 404 status

removed the media type application/json for the response with the status 400

removed the media type application/json for the response with the status 401

removed the media type application/json for the response with the status 403

removed the media type application/json for the response with the status 409

removed the required property code from the response with the 404 status

removed the required property message from the response with the 404 status

removed the optional property issues from the response with the 404 status

removed the optional property missingPermissions from the response with the 404 status

added the media type text/plain for the response with the status 400

added the media type text/plain for the response with the status 403

added the media type text/plain for the response with the status 409

added the non-success response with the status 429

added the required property error to the response with the 404 status

removed the media type text/plain for the response with the status 400

removed the media type text/plain for the response with the status 403

removed the media type text/plain for the response with the status 409

removed the required property error from the response with the 404 status

added the media type application/json for the response with the status 400

added the media type application/json for the response with the status 401

added the media type application/json for the response with the status 403

added the media type application/json for the response with the status 409

added the optional property issues to the response with the 404 status

added the optional property missingPermissions to the response with the 404 status

added the required property code to the response with the 404 status

added the required property message to the response with the 404 status

added the non-success response with the status 409

endpoint added