Protocol v5 tests

[krojew]

After introducing protocol v5, we need extensive end-to-end tests on a v5 cluster. Ideally, also regressions checks with v4.

Such tests include running all types of queries with and without compression (everything from section 4 of https://github.com/apache/cassandra/blob/trunk/doc/native_protocol_v5.spec), listening to events, using high-level Rust-to-UDT (de)serialization, using different authentication methods.

Note: use the latest Cassandra 4.0 and the master branch, since the changes are not published yet.

[krojew]

@conorbros have you had a chance to check out the latest master?

[conorbros]

@krojew I intend on looking into it this week.

We have v4 running on the latest master but will look into getting v5 working soon.

[stale]

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