Update Makefile #1392

Job	Run time
download_caravel	1m 32s
download_deps (pdk-with-volare)	3m 37s
download_deps (install_mcw)	3m 34s
download_deps (openlane)	1m 3s
download_deps (setup-timing-scripts)	34s
download_deps (precheck)	2m 58s
hardening (sky130A)	1h 6m 30s
RTL-verification (sky130A)	4m 9s
hardening (sky130B)	1h 8m 10s
RTL-verification (sky130B)	4m 6s
STA (sky130A)	8m 44s
precheck (sky130A)	37m 24s
precheck (sky130B)	36m 55s
	3h 59m 16s

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