[Monitoring] Skip some of the tests because they are doing cuncurrent modifications that fail.

[amanda-tarafa]

Even thouhg in #1067 each test project was configured to not run tests in parallel, the different projects can still be being run in parallel and also we are running tests in Windows and Linux, which run roughly at the same time on presubmit. Several of the test projects are using the same fixture, and there is where we get "Too many concurrent edits to the project configuration". For fixing this we'll need to:

• Merge all test projects into one and use the fixture as a collection fixture.
• Add a retry on the fixture when creating the resources in case Windows and Linux are running at the same time.

Tests will be disabled in #1067 until these fixes can be made.