Changes to Get integration metadata

added the pattern ^\d+$ to the path request parameter id

the id response's property type changed from string to no type for status 200

added the non-success response with the status 400

added the non-success response with the status 401

added the non-success response with the status 403

added the non-success response with the status 429

the response optional property connected_advertiser_id became not read-only for the status 200

the response optional property connected_user_id became not read-only for the status 200

the response optional property id became read-only for the status 200

added Pinterest.Lib.IntegerFormatType to the id response property allOf list for the response status 200

the response property id became required for the status 200

the id response's property pattern ^\d+$ was removed for the status 200

endpoint added