Increase build target to attempt to fix Mac builder

Author: Motobug

.github/workflows/scripts/macos/build-dependencies.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-export MACOSX_DEPLOYMENT_TARGET=10.15
+export MACOSX_DEPLOYMENT_TARGET=11.00
 INSTALLDIR="$HOME/deps"
 NPROCS="$(getconf _NPROCESSORS_ONLN)"
 SDL=SDL2-2.30.9