ci: Use Qt 6 on macOS 12 native task

Author: hebasto

.cirrus.yml

@@ -308,7 +308,7 @@ task:
 task:
   name: 'macOS 12 native [gui, system sqlite only] [no depends]'
   brew_install_script:
-    - brew install boost libevent qt@5 miniupnpc libnatpmp ccache zeromq qrencode libtool automake gnu-getopt
+    - brew install boost libevent qt@6 miniupnpc libnatpmp ccache zeromq qrencode libtool automake gnu-getopt
   << : *GLOBAL_TASK_TEMPLATE
   macos_instance:
     # Use latest image, but hardcode version to avoid silent upgrades (and breaks)

ci/test/00_setup_env_mac_host.sh

@@ -9,7 +9,8 @@ export LC_ALL=C.UTF-8
 export HOST=x86_64-apple-darwin
 export PIP_PACKAGES="zmq lief"
 export GOAL="install"
-export BITCOIN_CONFIG="--with-gui --enable-reduce-exports"
+export BITCOIN_CONFIG="--with-gui=qt6 --enable-reduce-exports"
+export NO_WERROR=1
 export CI_OS_NAME="macos"
 export NO_DEPENDS=1
 export OSX_SDK=""