Prefer Dispose/DisposeAsync over TestCleanup methods

[Evangelink]

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Default severity: Info
Title: Prefer Dispose or DisposeAsync over TestCleanup methods

Flags any use of TestCleanup and suggests to refactor code to use Dispose/DisposeAsync.

AB#1994936

[Evangelink]

We should add an exclusion of the method is marked with [Timeout] because there is no equivalent for Dispose/DisposeAsync.

[testplatform-bot]

✅ Successfully linked to Azure Boards work item(s):

• User Story 1994936