Updated: libnghttp2{_14,-devel}, nghttp2, {mingw64-{x86_64,i686},python{38,39}}-nghttp2 1.51

[Cygwin nghttp2 Maintainer]

The following packages have been upgraded in the Cygwin distribution:

* nghttp2			1.51
* libnghttp2_14			1.51
* libnghttp2-devel		1.51
* python38-nghttp2		1.51
* python39-nghttp2		1.51
* mingw64-x86_64-nghttp2	1.51
* mingw64-i686-nghttp2		1.51

HTTP/2 and its header compression algorithm HPACK implementation.
The framing layer of HTTP/2 is implemented as a reusable library.
Also included are an HTTP/2 client, server, proxy, load test and
benchmarking tool, and Python modules.

For more information see the project home page:

	https://nghttp2.org/

or the repo README:

	https://github.com/nghttp2/nghttp2#readme

See link or text below for recent changes; after installation for
complete details of changes read /usr/share/doc/nghttp2/ChangeLog.

	https://nghttp2.org/blog/


V1.51	2022-11-13

Lib

* This release adds casts to silence implicit conversion warnings for
  Windows build.

Doc

* Updated packages described in README based on Ubuntu 22.04.
* Android documentation has been updated.

Build

The following dependencies have been updated:
* Android NDK
* libbpf
* OpenSSL
* ngtcp2
Python bindings are now disabled by default because it has been
deprecated.

Third-party

* llhttp has been updated.

Nghttpx

* fixes affinity-cookie-stickiness parameter handling.

Integration

* adds http3 integration test.