`@aws-amplify/backend` should inherit version bump kind from dependencies.

[sobolk]

Follow up on top of #1637 .

We shipped @aws-amplify/backend-function@1.1.0 I.e. with minor version increment. But automatically @aws-amplify/backend received only patch increment and shipped with @aws-amplify/backend@1.0.4.

@aws-amplify/backend should inherit version bump kind from dependencies from which it re-exports APIs.

A minimal solution that would fulfill this ask is to implement PR check that fails if changesets are not correct in this respect.