Fix release builds for multi-arch

Author: keith

Makefile

@@ -1,11 +1,11 @@
-RELEASE_BUILD=./.build/release
+RELEASE_BUILD=./.build/apple/Products/Release
 EXECUTABLE=reminders
 ARCHIVE=$(EXECUTABLE).tar.gz
 
 .PHONY: clean build-release package
 
 build-release:
-	swift build --configuration release -Xswiftc -warnings-as-errors
+	swift build --configuration release -Xswiftc -warnings-as-errors --arch arm64 --arch x86_64
 
 package: build-release
 	$(RELEASE_BUILD)/$(EXECUTABLE) --generate-completion-script zsh > _reminders