Advanced integration tests

[dkropachev]

Have an integration sct tests in the same way it was implemented for gocql.

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1. 3.x: Advanced integration tests
2. 4.x: Advanced integration tests

[roydahan]

for the 3.x, there are plenty of tests using c-s we can use. the main candidate is longevity-100gb-4h-test.
We can also have a shorter version of it for 1h.

For the 4.x, there is a task on @fruch team dashboard that needs to decide what test to be used.