haproxy: remove quictls support

QuicTLS was a fork of OpenSSL which ended development in April 2025 and
is stuck at an OpenSSL 3.3.0 base commit.

The resulting QUIC functionality has been merged into and released in
OpenSSL 3.5.0.

(cherry picked from commit c557ebe0db)

pkgs/by-name/ha/haproxy/package.nix

@@ -2,18 +2,16 @@
   useLua ? true,
   usePcre ? true,
   withPrometheusExporter ? true,
-  sslLibrary ? "quictls",
+  sslLibrary ? "openssl",
   stdenv,
   lib,
   fetchurl,
-  fetchpatch,
   nixosTests,
   zlib,
   libxcrypt,
   aws-lc,
   libressl,
   openssl,
-  quictls,
   wolfssl,
   lua5_4,
   pcre2,
@@ -23,7 +21,6 @@ assert lib.assertOneOf "sslLibrary" sslLibrary [
   "aws-lc"
   "libressl"
   "openssl"
-  "quictls"
   "wolfssl"
 ];
 let
@@ -32,7 +29,6 @@ let
       aws-lc
       libressl
       openssl
-      quictls
       ;
     wolfssl = wolfssl.override {
       variant = "haproxy";