- Update Build Image from Fedora 40 to 41
- Update CFLAGS and LDFLAGS
- Update Nginx to version 1.27.3

```
Changes with nginx 1.27.3                                        26 Nov 2024

    *) Feature: the "server" directive in the "upstream" block supports the
       "resolve" parameter.

    *) Feature: the "resolver" and "resolver_timeout" directives in the
       "upstream" block.

    *) Feature: SmarterMail specific mode support for IMAP LOGIN with
       untagged CAPABILITY response in the mail proxy module.

    *) Change: now TLSv1 and TLSv1.1 protocols are disabled by default.

    *) Change: an IPv6 address in square brackets and no port can be
       specified in the "proxy_bind", "fastcgi_bind", "grpc_bind",
       "memcached_bind", "scgi_bind", and "uwsgi_bind" directives, and as
       client address in ngx_http_realip_module.

    *) Bugfix: in the ngx_http_mp4_module.
       Thanks to Nils Bars.

    *) Bugfix: the "so_keepalive" parameter of the "listen" directive might
       be handled incorrectly on DragonFly BSD.

    *) Bugfix: in the "proxy_store" directive.
```

Signed-off-by: CompileNix <compilenix@gmail.com>