Change log:
a869e8a Revise retry for IntegrationReactiveUtils (#3543)
c392d38 (bugfix/imap-idle-race) Fix IMAP race condition around idle()
b9704e1 (apinske/5.4.x) GH-536: Fix test for backport
5e6a6a2 GH-3526: Fix Infinite Loop in FailoverCConnFactory
c5e24fb GH-3521: Delayer: schedule release task with TX (#3525)
2d443f9 GH-3523: TcpConnectionEvent Fixes