doc: fix typo in http2.md

Backport-PR-URL: #22850
PR-URL: #20843
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

Author: kakts

doc/api/http2.md

@@ -3123,7 +3123,7 @@ added: v8.4.0
 -->
 
 Call [`http2stream.pushStream()`][] with the given headers, and wraps the
-given newly created [`Http2Stream`] on `Http2ServerRespose`.
+given newly created [`Http2Stream`] on `Http2ServerResponse`.
 
 The callback will be called with an error with code `ERR_HTTP2_STREAM_CLOSED`
 if the stream is closed.