docs: update do-not-disrupt description

[jmdeal]

Fixes #N/A

Description Updates the description for karpenter.sh/do-not-disrupt to reflect the changes made when TGP was introduced.

How was this change tested?

Does this change impact docs?

• [x] Yes, PR includes docs updates
• [ ] Yes, issue opened: #
• [ ] No

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 11282313979

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 83.064%

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Totals
Change from base Build 11279890012:	0.0%
Covered Lines:	5596
Relevant Lines:	6737

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💛 - Coveralls

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[github-actions[bot]]

This PR has been inactive for 14 days. StaleBot will close this stale PR after 14 more days of inactivity.