MINOR: Prevent broker fencing by adjusting resendExponentialBackoff in BrokerLifecycleManager (apache#19061)

This PR reduces `maxInterval` for `resendExponentialBackoff` in
`BrokerLifecycleManager` class from `broker.session.timeout.ms` to half
of its value. Setting `maxInterval` to `broker.session.timeout.ms`
caused brokers to be fenced if a resend attempt occurred near the
timeout threshold, leading to unnecessary broker fencing.

Reviewers: Colin P. McCabe <[email protected]>

Author: MahsaSeifikar

core/src/main/scala/kafka/server/BrokerLifecycleManager.scala

@@ -93,7 +93,7 @@ class BrokerLifecycleManager(
    * The exponential backoff to use for resending communication.
    */
   private val resendExponentialBackoff =
-    new ExponentialBackoff(100, 2, config.brokerSessionTimeoutMs.toLong, 0.02)
+    new ExponentialBackoff(100, 2, config.brokerSessionTimeoutMs.toLong / 2, 0.02)
 
   /**
    * The number of times we've tried and failed to communicate.  This variable can only be