Add connect state to OMv2 and shadow prefix tag to legacy

[steveny91]

What does this PR do?

Add a metric that was collected in Legacy that wasn't ported over to OMv2. Also add the ability for rbac metric to have a optional tag for shadow_rule_prefix

[github-actions]

Test Results

    6 files      6 suites   2m 17s ⏱️
  92 tests   90 ✔️   2 💤 0 ❌
279 runs  253 ✔️ 26 💤 0 ❌

Results for commit 69f07bd.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

Merging #16453 (69f07bd) into master (3b35b09) will increase coverage by 0.09%.
Report is 3 commits behind head on master.
The diff coverage is 100.00%.

Additional details and impacted files

Flag	Coverage Δ
activemq	?
cassandra	?
confluent_platform	?
envoy	95.01% <100.00%> (+0.27%)	⬆️
hive	?
hivemq	?
ignite	?
jboss_wildfly	?
kafka	?
presto	?
solr	?
tomcat	?
weblogic	?

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