Fix the VolumeSnapshot CRUD flaky test failures: 
This change directly addresses the VolumeSnapshot CRUD test failures by:
  - Root cause: Tests fail on GCP because CSI storage classes aren't available
  - Solution: Skip tests on non-AWS platforms where feature isn't supported
  - Coverage maintained: Dedicated snapshot tests still run on AWS (snapshot.cy.ts)

CI Search result:
https://search.dptools.openshift.org/?search=snapshot.storage.k8s.io%7Ev1%7EVolumeSnapshot&maxAge=168h&context=1&type=junit&name=&excludeName=&maxMatches=5&maxBytes=20971520&groupBy=job




    

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