Bump litd to version `v0.12.3-alpha` #1413

Job	Run time
check commits	1m 20s
frontend tests on ubuntu-latest	2m 46s
backend build on ubuntu-latest	3m 41s
integration test	8m 22s
frontend tests on windows-latest	6m 19s
backend build on windows-latest	10m 17s
lint	3m 27s
frontend tests on macOS-latest	3m 58s
backend build on macOS-latest	13m 25s
RPC proto compilation check	4m 17s
unit-race	1m 14s
unit tests	2m 10s
	1h 1m 16s

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