message: update changelog with
diff: ## Upcoming
  -- `apollo`
  +## `apollo@2.6.2`
  +
  +- `apollo@2.6.2`
  - fix remoteUrl(remove slug) for service:check [#1121](https://github.com/apollographql/apollo-tooling/pull/1121)
  ## `apollo-graphql@0.2.0`
  