Add unit tests for `uploadPayload` #8006

Job	Run time
Split workflow (ubuntu-latest, nightly-latest)	1m 19s
Split workflow (ubuntu-latest, default)	1m 25s
Split workflow (macos-latest, linked)	2m 14s
Split workflow (macos-latest, nightly-latest)	1m 39s
Split workflow (ubuntu-latest, linked)	1m 22s
Split workflow (macos-latest, default)	1m 38s
	9m 37s

Provide feedback