feat: send `RunPart` metadata to upload endpoint #382

Job	Run time
plan	17s
build-local-artifacts (aarch64-unknown-linux-musl)	2m 13s
build-local-artifacts (x86_64-unknown-linux-musl)	1m 4s
build-global-artifacts	17s
host	0s
announce	0s
custom-bump-action	0s
	3m 51s

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