www/nginx-devel: third-party modules management (+)
o) remove third-party cookie_flag module, the functionality supported
natively by the proxy_cookie_flags directive;
o) update third-party ndk module to 0.3.3;
o) update third-party lua module to 0.10.26.rc2.
Updated version of the lua module can be built with pcre2.
Bump PORTREVISION.