[fix][test] Disable invalid test BrokerServiceTest#testBrokerStatsTopicLoadFailed

[lhotari]

Fixes #20492

Motivation

The test BrokerServiceTest#testBrokerStatsTopicLoadFailed introduced in #19236 is invalid.

• It modifies the current shared state and that causes other tests to fail.
• The test uses Awaitility with a 2 minute timeout. That is too long for unit tests.

Modifications

• disable the test until it is fixed

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

[lhotari]

/pulsarbot rerun-failure-checks

[eolivelli]

+1

[tisonkun]

I suggest we either:

1. Add a comment to the issue so that developers know where to find information on work for re-enable it (it can achieve by git blame, but why not?)
2. Remove the test case and if the coverage is necessary, file a new ticket to add it back.

[lhotari]

I suggest we either:

1. Add a comment to the issue so that developers know where to find information on work for re-enable it (it can achieve by git blame, but why not?)
2. Remove the test case and if the coverage is necessary, file a new ticket to add it back.

@tisonkun I'll create a ticket once this is merged. There's already a comment that it's disabled because it is flaky. I'm expecting that this is sufficient.

[tisonkun]

Fair enough.