Panic when pool idle timeout set to zero

[Seeker14491]

Version
hyper v0.14.20, h2 v0.3.14, tokio v1.21.2

Platform
Linux seekr-xps15-zorin 5.13.0-35-generic #40~20.04.1-Ubuntu SMP Mon Mar 7 09:18:32 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Description
Passing in Some(Duration::ZERO) to hyper::client::Builder::pool_idle_timeout() can lead to a panic. The panic happens in the tokio::time::interval() function, which disallows specifying a zero duration.

I have switched my code to use builder.pool_max_idle_per_host(0) instead, which works properly.

[grodin]

Resolved by #3365 but the issue was missed