Changes to Execute function

added the required property execution/id to the response with the 200 status

added the required property execution/duration to the response with the 200 status

the request property http became not nullable

the request property http/allow/items/auth/basic became not nullable

the request property http/allow/items/auth/bearer became not nullable

the request property http/allow/items/auth/header became not nullable

the request property http/allow/items/auth/query became not nullable

the request property limits became not nullable

removed the enum value php of the request property language

removed the enum value ruby of the request property language

the code response's property format changed from int32 to no format for status 401

the execution/exit_code response's property format changed from int32 to no format for status 200

the response property execution became required for the status 200

the response property execution/exit_code became required for the status 200

the response property execution/stderr became required for the status 200

the response property execution/stdout became required for the status 200

the response property output became required for the status 200

the response property output_status became required for the status 200

added the optional property output_status to the response with the 200 status

endpoint added