Create tag '3d-v3.4.0'

Sync branch v2.4.6 to v2.4.7

Fix jsb-link template. (cocos#4009)

* Fix jsb-link template.

* app

Create tag '3d-v3.3.2'

Create tag '3d-v3.3.1'

Create tag '3d-v3.2.1'

Create tag '3d-v3.3.0'

fix bug: websocket message is truncated (cocos#3789)

* Fix js string lose \0
* fix bug: websocket message is truncated

fix bug: websocket message is truncated (cocos#3789)

* Fix js string lose \0
* fix bug: websocket message is truncated

fix bug: websocket message is truncated (cocos#3789)

* Fix js string lose \0
* fix bug: websocket message is truncated