pkg/manager: export programs with coverage #15756

Job	Run time
aux	1m 11s
arch (presubmit_arch_linux)	1m 1s
build	41s
arch (presubmit_arch_freebsd)	1m 29s
dashboard	39s
arch (presubmit_arch_netbsd)	1m 27s
gvisor	1m 4s
arch (presubmit_arch_openbsd)	59s
old	1m 23s
race	38s
arch (presubmit_arch_darwin)	1m 0s
race_dashboard	37s
arch (presubmit_arch_windows)	1m 0s
arch (presubmit_arch_executor)	1m 10s
	14m 19s

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