ConnectableObservable & publish typings are wrong

[joshribakoff]

Bug Report

Current Behavior
Typings for connectableObservable when using publish are wrong

Reproduction

• REPL or Repo link:
  https://stackblitz.com/edit/rxjs-nsj1hs?file=index.ts

import { of, ConnectableObservable,timer } from 'rxjs'; 
import { map, publish } from 'rxjs/operators';


const stall$: ConnectableObservable<number> = timer(100).pipe(publish());
stall$.connect();

There is a TS error on declaration of stall$

Expected behavior
Should infer the type w/o annotating. If I do chose to annotate, no type error should occur.

[voliva]

I think it's a duplicate of #2972

[kwonoj]

Closing as dupe as commented.