www/nginx-devel: update 1.25.0 -> 1.25.1

<Changelog>

*) Feature: the "http2" directive, which enables HTTP/2 on a per-server

basis; the "http2" parameter of the "listen" directive is now
deprecated.

*) Change: HTTP/2 server push support has been removed.

*) Change: the deprecated "ssl" directive is not supported anymore.

*) Bugfix: in HTTP/3 when using OpenSSL.

</Changelog>