deps: update gyp file for ngtcp2 1.11.0

Add source file introduced in ngtcp2 1.11.0 to `ngtcp2.gyp`.

Refs: #57179
PR-URL: #57225
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>

Author: richardlau

deps/ngtcp2/ngtcp2.gyp

@@ -13,6 +13,7 @@
       'ngtcp2/lib/ngtcp2_cid.c',
       'ngtcp2/lib/ngtcp2_conn.c',
       'ngtcp2/lib/ngtcp2_conv.c',
+      'ngtcp2/lib/ngtcp2_dcidtr.c',
       'ngtcp2/lib/ngtcp2_crypto.c',
       'ngtcp2/lib/ngtcp2_err.c',
       'ngtcp2/lib/ngtcp2_frame_chain.c',