ci: provide separate macos releases for intel and arm

This will immensely reduce the complexity required to support both
architectures, reduce overall lines of code and unblock follow-up
simplifications.

.github/scripts/build_universal_macos.sh

@@ -1,22 +0,0 @@
-#!/bin/bash -e
-
-MACOSX_DEPLOYMENT_TARGET=11.0
-export MACOSX_DEPLOYMENT_TARGET
-cmake -S cmake.deps -B .deps -G Ninja \
-  -D CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} \
-  -D CMAKE_OSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET} \
-  -D CMAKE_OSX_ARCHITECTURES=arm64\;x86_64 \
-  -D CMAKE_FIND_FRAMEWORK=NEVER
-cmake --build .deps
-cmake -B build -G Ninja \
-  -D CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} \
-  -D CMAKE_OSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET} \
-  -D CMAKE_OSX_ARCHITECTURES=arm64\;x86_64 \
-  -D ENABLE_LIBINTL=OFF \
-  -D CMAKE_FIND_FRAMEWORK=NEVER
-cmake --build build
-# Make sure we build everything for M1 as well
-for macho in build/bin/* build/lib/nvim/parser/*.so; do
-  lipo -info "$macho" | grep -q arm64 || exit 1
-done
-cpack --config build/CPackConfig.cmake