Increase cl segment allocation check timeout
Increase cl segment allocation check timeout

patch by Stefan Podkowinski; reviewed by Jason Brown for CASSANDRA-14597

stef1927/cassandra-dtest,pauloricardomg/cassandra-dtest,bdeggleston/cassandra-dtest,stef1927/cassandra-dtest,bdeggleston/cassandra-dtest,blerer/cassandra-dtest,iamaleksey/cassandra-dtest,aweisberg/cassandra-dtest,pauloricardomg/cassandra-dtest,blerer/cassandra-dtest,iamaleksey/cassandra-dtest,aweisberg/cassandra-dtest,pcmanus/cassandra-dtest