chore(package): update flow-bin to version 0.37.4
chore(package): update flow-bin to version 0.37.4

Closes #641

https://greenkeeper.io/

graphql/graphql-js,jjergus/graphql-js,gabelevi/graphql-js,baer/graphql-js,enaqx/graphql-js,baer/graphql-js,graphql/graphql-js,enaqx/graphql-js,enaqx/graphql-js,gabelevi/graphql-js,tgriesser/graphql-js,tgriesser/graphql-js,jjergus/graphql-js,graphql/graphql-js