webpack-env require.ensure typing update (#24951)
webpack-env require.ensure typing update (#24951)

* webpack-env require.ensure typing update

* webpack-env require.ensure typing fix

AgentME/DefinitelyTyped,georgemarshall/DefinitelyTyped,dsebastien/DefinitelyTyped,dsebastien/DefinitelyTyped,borisyankov/DefinitelyTyped,one-pieces/DefinitelyTyped,mcliment/DefinitelyTyped,AgentME/DefinitelyTyped,georgemarshall/DefinitelyTyped,markogresak/DefinitelyTyped,rolandzwaga/DefinitelyTyped,magny/DefinitelyTyped,georgemarshall/DefinitelyTyped,borisyankov/DefinitelyTyped,georgemarshall/DefinitelyTyped,magny/DefinitelyTyped,rolandzwaga/DefinitelyTyped,AgentME/DefinitelyTyped,AgentME/DefinitelyTyped