[WIP] e2e: add the e2e tests for rate limit of download, upload and prefetch #1678

Job	Run time
e2e_tests (normal)	43m 47s
e2e_tests (concurent-back-source)	40m 52s
e2e_tests (disable-seed-peer)	21m 30s
e2e_tests (ipv6)	38m 44s
e2e_tests (split-running-tasks)	40m 54s
e2e_tests (cache-list-metadata)	42m 52s
e2e_tests (write-buffer-size)	41m 54s
	4h 30m 33s

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