fix: Ensure all patch calls can conflict when resource version doesn't match

[jonathan-innis]

Fixes #1578

Description

This change ensures that calls to Patch that would fully replace portions of the spec like lists continue to conflict if the resource has changed since the controller first retrieved the resource.

This fixes the issue in #1578 where resource quantities are converted to different strings during deserialization and then re-serialization back by ensuring that the request that we send to the apiserver only represents the parts of the resource that we intend to change.

This allows us to keep the NodeClaim immutability checks that we have.

How was this change tested?

make presubmit

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[coveralls]

Pull Request Test Coverage Report for Build 10908544791

Details

• 58 of 78 (74.36%) changed or added relevant lines in 17 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.05%) to 80.798%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controllers/nodeclaim/termination/controller.go	4	5	80.0%
pkg/controllers/nodeclaim/lifecycle/controller.go	4	7	57.14%
pkg/controllers/node/termination/controller.go	8	13	61.54%
pkg/controllers/disruption/controller.go	1	12	8.33%

Files with Coverage Reduction	New Missed Lines	%
pkg/controllers/nodeclaim/termination/controller.go	1	69.03%
pkg/controllers/node/termination/controller.go	1	67.57%

Totals
Change from base Build 10907749057:	0.05%
Covered Lines:	8424
Relevant Lines:	10426

---

💛 - Coveralls

[njtran]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jonathan-innis, njtran

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