ci: Disable fuzz tests for "macOS 13 native" job

Fuzz tests cause timeout for reasons unrelated to the QML GUI
development.

Can be reverted back after syncing the QML repository with the main one.

Author: hebasto

ci/test/00_setup_env_mac_native.sh

@@ -14,5 +14,3 @@ export CI_OS_NAME="macos"
 export NO_DEPENDS=1
 export OSX_SDK=""
 export CCACHE_MAXSIZE=400M
-export RUN_FUZZ_TESTS=true
-export FUZZ_TESTS_CONFIG="--exclude banman"  # https://github.com/bitcoin/bitcoin/issues/27924