chore(package): update babel-plugin-transform-es2015-block-scoping to version 6.21.0
chore(package): update babel-plugin-transform-es2015-block-scoping to version 6.21.0

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