refactor(manager/handlers/bucket.go): Reorder imports for clarity #2469

Job	Run time
e2e_tests (concurent-back-source)	43m 55s
e2e_tests (disable-seed-peer)	21m 33s
e2e_tests (split-running-tasks)	45m 32s
e2e_tests (write-buffer-size)	42m 11s
e2e_tests (normal)	36m 22s
e2e_tests (cache-list-metadata)	44m 16s
e2e_tests (ipv6)	40m 44s
	4h 34m 33s

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