fix: 4.x can't connect to the cluster when first node is non responsive #736

Job	Run time
Full verify (8)	21s
Unit tests (8)	1m 57s
Setup ITs	4s
Build (8)	52s
Cassandra ITs (RELEASE-3.X, 8)	2m 44s
Scylla ITs (ENTERPRISE-RELEASE, 8)	2m 47s
Cassandra ITs (RELEASE-4.X, 8)	2m 34s
Scylla ITs (ENTERPRISE-PRIOR-RELEASE, 8)	24s
Scylla ITs (OSS-RELEASE, 8)	3m 6s
Scylla ITs (OSS-PRIOR-RELEASE, 8)	2m 59s
	17m 48s

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