test: Expand KOWKNodeClass to Support Generic NodeClass for E2E tests

[engedaam]

Fixes #N/A

##Description**

This PR extends the current KowkNodeClass implementation in the E2Es to support cloudprovider defined NodeClass, allowing for more flexible and reusable test management across different cloud providers integration testing.

Changes

• Added abstraction layer for provider-specific implementations
• Updated node lifecycle handlers for generic support

How was this change tested?

• make e2etests

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

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[coveralls]

Pull Request Test Coverage Report for Build 13162260466

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 4 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.07%) to 81.262%

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Files with Coverage Reduction	New Missed Lines	%
pkg/controllers/node/termination/controller.go	2	71.65%
pkg/controllers/disruption/drift.go	2	89.66%

Totals
Change from base Build 13143266451:	-0.07%
Covered Lines:	9129
Relevant Lines:	11234

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💛 - Coveralls