feat: reuse precompiled objects of targets in srcs #288

Job	Run time
rbe	0s
coverage	1m 10s
distros (ubuntu-20.04)	9m 35s
compilation_modes (fastbuild)	9m 37s
compilation_modes (dbg)	9m 33s
sanitizers (asan)	1m 6s
distros (ubuntu-22.04)	9m 42s
compilation_modes (opt)	9m 44s
sanitizers (lsan)	1m 15s
sanitizers (tsan)	1m 48s
sanitizers (ubsan)	1m 17s
	54m 47s

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