Switch `dependencies` to `peerDependencies`

[trevor-scheer]

These dependencies should all be installed by the consumer of the package:

    "@apollo/server": "^4.1.1",
    "@azure/functions": "^3.2.0",
    "graphql": "^16.6.0",

Typically the versions we specify for peers are wide. For example, this package will work with all versions of apollo server 4, so we'd specify:

"peerDependencies": {
  "@apollo/server": "^4.0.0",
  ...
}

This is especially critical for graphql, since at runtime it will enforce that there's only one version of it installed. This means that users of this package who install a different version of graphql (like =16.5.0, for example) will encounter runtime errors that they can only work around by specifying your exact version of graphql.

Let me know if you have any questions, happy to help here. This is an important change, so if you don't have the capacity to take this on I'd be happy to. Thanks!