Polish `Makefile` #104

Job	Run time
build (linux, single, x86_64, template_debug, ubuntu-20.04)	8m 59s
build (windows, single, x86_32, template_debug, windows-latest)	2m 39s
build (windows, single, x86_64, template_debug, windows-latest)	6m 50s
build (macos, single, universal, template_debug, macos-latest)	8m 46s
build (android, single, arm64, template_debug, ubuntu-20.04)	7m 27s
build (android, single, arm32, template_debug, ubuntu-20.04)	6m 21s
build (android, single, x86_64, template_debug, ubuntu-20.04)	7m 52s
build (android, single, x86_32, template_debug, ubuntu-20.04)	7m 29s
build (ios, single, arm64, template_debug, macos-latest)	4m 12s
build (web, single, wasm32, template_debug, ubuntu-20.04)	11m 6s
build (linux, single, x86_64, template_release, ubuntu-20.04)	8m 4s
build (linux, double, x86_64, template_debug, ubuntu-20.04)	8m 9s
build (windows, double, x86_32, template_debug, windows-latest)	3m 45s
build (windows, double, x86_64, template_debug, windows-latest)	3m 43s
build (macos, double, universal, template_debug, macos-latest)	7m 20s
build (android, double, arm64, template_debug, ubuntu-20.04)	7m 47s
build (android, double, arm32, template_debug, ubuntu-20.04)	6m 28s
build (android, double, x86_64, template_debug, ubuntu-20.04)	7m 34s
build (android, double, x86_32, template_debug, ubuntu-20.04)	8m 6s
build (ios, double, arm64, template_debug, macos-latest)	5m 6s
build (web, double, wasm32, template_debug, ubuntu-20.04)	10m 59s
build (linux, double, x86_64, template_release, ubuntu-20.04)	8m 14s
merge	4s
	2h 37m 0s

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