http2: move events to the JSStreamSocket

When using a JSStreamSocket, the
HTTP2Session constructor will replace
the socket object
http2 events should be attached to the
JSStreamSocket object because the http2
session handle lives there

Fixes: https://github.com/nodejs/node/issues/35695

PR-URL: https://github.com/nodejs/node/pull/35772


Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ricky Zhou <0x19951125@gmail.com>