Fix kafka request metrics due to KIP 272

[yzhan289]

What does this PR do?

In KIP-272, all RequestsPerSec metric bean names were changed from
kafka.network:type=RequestMetrics,name=RequestsPerSec,request={Produce|FetchConsumer|FetchFollower|...}

to
kafka.network:type=RequestMetrics,name=RequestsPerSec,request={Produce|FetchConsumer|FetchFollower|...},version=INTEGER

This caused our current RequestsPerSec metrics to no longer be collected. This wasn't discovered until recently because our current e2e environment doesn't collect the missing metrics in the first place.

This PR updates the bean name to be a regex and allow it to collect the version number if it exists, but retains backwards compatibility with the original style.

Motivation

Support case

Additional Notes

We should consider using a more official Kafka image, since our version is a major version release behind the current version of Kafka. Here's an alternate image we can consider using.

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
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