Helidon Server Streaming Idle Connection Timeout Disconnects Consumer

[mattp-swirldslabs]

• While working on Server streaming of real blocks triggers infinite loop in Helidon's FlowControl mechanism pbj#329, I found that Helidon will disconnect a consumer from our Server Streaming connections with a GO_AWAY http2 frame when the connection time exceeds the default idleConnectionTimeout of 5 mins.

• As a temporary fix to Server streaming of real blocks triggers infinite loop in Helidon's FlowControl mechanism pbj#329, I set the timeout to 2 hrs to help with testing.

[mattp-swirldslabs]

It looks like Helidon has a fix for this issue slated for 4.2.0: helidon-io/helidon#9520
I'll wait to confirm and close this ticket once it's published. I'll mark this as "blocked" until we can verify with 4.2.0

[mattp-swirldslabs]

Helidon published the fixes early with 4.1.6 and I verified with: #448