[client][internal] Fix tests related to PR#975

[mynameborat]

Summary

• Fix tests failures due to [fast-client][server] Throw 403 for metadata request that does not have storage read quota enabled #975
• Extracting the test fixes from [internal][client] Support GRPC port discovery for non-local environment #987
• Reset storage node read quota enabled flag prior to each test in FastClientIndividualFeatureConfigurationTest

How was this PR tested?

ran the failing tests locally in intellij and terminal

Does this PR introduce any user-facing changes?

• No. You can skip the rest of this section.
• Yes. Make sure to explain your proposed changes and call out the behavior change.

[xunyin8]

As we discussed offline testSNQuotaNotEnabled is the trouble maker here together with the fact that the SN read quota flag is only set during setUp() which is only annotated with BeforeClass. We need to reset the flag after each test.

[adamxchen]

They were not failing in the previous tests because they are flaky, correct?

[mynameborat]

They were not failing in the previous tests because they are flaky, correct?

@adamxchen There is some flakiness around testSNQuotaNotEnabled depending on the order of execution of tests in the class.