Remove `box.info.cluster.uuid` usage from tests

[sergepetrenko]

tarantool-python integration tests fail on one of the Tarantool 3.0 PRs: tarantool/tarantool#8289 https://github.com/tarantool/tarantool/actions/runs/5011819703/jobs/8984719865?pr=8289

The reason seems to be in ./test/suites/crud_server.lua referencing box.info().cluster.uuid.
The tarantool/tarantool#8289 PR renames box.info.cluster.uuid to box.info.replicaset.uuid.

So the test should prefer box.info.replicaset.uuid and only fall back to box.info.cluster.uuid if box.info.replicaset.uuid is missing.