fix: 4.x can't connect to the cluster when first node is non responsive #739

Job	Run time
Full verify (8)	1m 45s
Unit tests (8)	2m 2s
Build (8)	59s
Setup ITs	4s
Scylla ITs (ENTERPRISE-RELEASE, 8)	31m 58s
Scylla ITs (ENTERPRISE-PRIOR-RELEASE, 8)	32s
Cassandra ITs (RELEASE-3.X, 8)	19m 30s
Scylla ITs (OSS-RELEASE, 8)	10m 9s
Cassandra ITs (RELEASE-4.X, 8)	22m 13s
Scylla ITs (OSS-PRIOR-RELEASE, 8)	10m 6s
	1h 39m 18s

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