message: fix(build): Fix express import in `gcpfunction`
  This fixes a spot where we're importing types only to _say_ that we're importing types only, in order to get rid of a warning in build. (If we don't say so, it gets mad because we only have `@types/express`, not `express`, as a listed dependency.)
diff: import { Scope } from '@sentry/node';
  import { Context as SentryContext } from '@sentry/types';
  -import { Request, Response } from 'express'; // eslint-disable-line import/no-extraneous-dependencies
  +import type { Request, Response } from 'express';
  import { hostname } from 'os';
  export interface HttpFunction {
  