ci: enable ErrorsRequestTimeouts metrics test

To be quite honest, I thought we'll be able to enable more tests, but:

1. StatsConnections
Requires `cass_cluster_set_num_threads_io`, `cass_cluster_set_core_connections_per_host`
and `cass_cluster_set_constant_reconnect`.

2. ErrorsConnectionTimeouts
Requires `cass_cluster_set_core_connections_per_host`.

3. SpeculativeExecutionRequests
Requires `cass_session_get_speculative_execution_metrics`.

4. Requests
This one is interesting. It turns out that cpp-driver stores latency
stats as microseconds, while rust-driver stores them as milliseconds.

Because of that, the mean and median latency is rounded to 0 (at least for my machine).
The test expects them to be greater than 0, which makes sense assuming
the driver collects the stats with microsecond precision.

I'm not sure how to address this one. Is there any way to force
higher >=1ms latencies in the test?

Author: muzarski

Makefile

@@ -25,6 +25,7 @@ SCYLLA_TEST_FILTER := $(subst ${SPACE},${EMPTY},ClusterTests.*\
 :LoggingTests.*\
 :PreparedMetadataTests.*\
 :UseKeyspaceCaseSensitiveTests.*\
+:MetricsTests.Integration_Cassandra_ErrorsRequestTimeouts\
 :-PreparedTests.Integration_Cassandra_PreparedIDUnchangedDuringReprepare\
 :HeartbeatTests.Integration_Cassandra_HeartbeatFailed\
 :ControlConnectionTests.Integration_Cassandra_TopologyChange\
@@ -64,6 +65,7 @@ CASSANDRA_TEST_FILTER := $(subst ${SPACE},${EMPTY},ClusterTests.*\
 :LoggingTests.*\
 :PreparedMetadataTests.*\
 :UseKeyspaceCaseSensitiveTests.*\
+:MetricsTests.Integration_Cassandra_ErrorsRequestTimeouts\
 :-PreparedTests.Integration_Cassandra_PreparedIDUnchangedDuringReprepare\
 :PreparedTests.Integration_Cassandra_FailFastWhenPreparedIDChangesDuringReprepare\
 :HeartbeatTests.Integration_Cassandra_HeartbeatFailed\