Caching registry fetch errors forever leads to PODs ending needing re…

[hennikul]

…start to fix temporary errors like routing after redeploy.

• Cache fetch errors for one minute to avoid overloading registry server.
• Should fix context cancelled loops seen after redeploy.

[philippgille]

ℹ️ Just FYI that https://github.com/heetch/avro/pull/143 was merged, to solve the same issue, but without the time-limited error cache