4.x: Add optional fallback for `ControlConnection#reconnect()` #689

Job	Run time
Build (8)	59s
Setup ITs	4s
Full verify (8)	1m 41s
Unit tests (8)	2m 15s
Scylla ITs (ENTERPRISE-RELEASE, 8)	29m 37s
Scylla ITs (ENTERPRISE-PRIOR-RELEASE, 8)	36m 3s
Cassandra ITs (RELEASE-3.X, 8)	20m 10s
Scylla ITs (OSS-RELEASE, 8)	10m 11s
Cassandra ITs (RELEASE-4.X, 8)	21m 12s
Scylla ITs (OSS-PRIOR-RELEASE, 8)	10m 13s
	2h 12m 25s

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