Transfers: allow configuring source ranking strategies. Closes #6342 #3103

Job	Run time
Check Python Type Annotations	22s
Add header lint	6s
Python type check (Pyright)	5m 48s
release-patch-setup	0s
setup	10s
release-patch-test	0s
test (alma9, 3.9, autotest, syntax, 1, false)	6m 33s
test (alma9, 3.9, autotest, docs, false)	4m 36s
test (alma9, 3.9, autotest, client_syntax, false)	4m 29s
test (alma9, 3.9, autotest, client, postgres14)	6m 42s
test (alma9, 3.9, autotest, remote_dbs, oracle, influxdb_elastic)	12m 0s
test (alma9, 3.9, autotest, remote_dbs, mysql8, influxdb_elastic)	12m 1s
test (alma9, 3.9, autotest, remote_dbs, postgres14, influxdb_elastic)	11m 59s
test (alma9, 3.9, autotest, sqlite, sqlite)	12m 4s
test (alma9, 3.9, autotest, multi_vo, postgres14, /opt/rucio/etc/multi_vo/tst)	11m 58s
test (alma9, 3.10, autotest, syntax, 1, false)	11m 7s
test (alma9, 3.10, autotest, client_syntax, false)	12m 0s
test (alma9, 3.10, autotest, client, postgres14)	12m 0s
test (alma9, 3.10, autotest, remote_dbs, oracle, influxdb_elastic)	12m 2s
test (alma9, 3.10, autotest, remote_dbs, mysql8, influxdb_elastic)	12m 1s
test (alma9, 3.10, autotest, remote_dbs, postgres14, influxdb_elastic)	12m 2s
test (alma9, 3.10, autotest, sqlite, sqlite)	11m 59s
test (alma9, 3.10, autotest, multi_vo, postgres14, /opt/rucio/etc/multi_vo/tst)	11m 59s
	3h 3m 58s

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