fix: strictly respect autoConnect flag

[jankapunkt]

Summary

Fixes the issue where autoConnect: false did not 100% prevent auto-connect

Linked issue(s)

#150

Involved parts of the project

Meteor, DDP

Added tests?

Yes

Targeted Meteor release version

2.x

Reproduction

const endpoint = `ws://localhost:3000/websocket`;
Meteor.connect(endpoint, {
  AsyncStorage,
  NetInfo: null,
  autoConnect: false,
});
Meteor.getData().ddp.on('connected', () => console.debug('should never fire'))

[jankapunkt]

@bratelefant I accidentally merged the other so this is a new PR, however I think this is even better, since the release will include this as an own bullet point in it's changelog later on

[jankapunkt]

Published @meteorrn/core@2.8.1-rc.1 for testing (also bumped companion versions)

[github-actions]

Closing this PR due to no activity. Feel free to reopen.