fix: Update spot pricing even in Isolated VPC

[liafizan]

Fixes ##5587

Description
Spot pricing uses EC2 api and a check in code base disabled spot pricing check when --isolated-vpc flag was used. Removed condition which will allow spot prices to be updated when in isolated-vpc

How was this change tested?
Manual testing. Tried adding a test in pricing suite but it did not help since pricing controller itself was enabled which deemed this test unnecessary.

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 8104908898

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.

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Details

• 9 of 9 (100.0%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 82.661%

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Totals
Change from base Build 8103228577:	0.02%
Covered Lines:	5263
Relevant Lines:	6367

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💛 - Coveralls

[engedaam]

Make sure you run make presubmit and make docgen which should make changes to get the ci-tests to pass

[jonathan-innis]

Thanks for adding the change!

[jonathan-innis]

@liafizan Did you validate this on your own private cluster?

[liafizan]

@liafizan Did you validate this on your own private cluster?

Hey @jonathan-innis. I tested my changes in local cluster. Though not exhaustive but I can validate --isolated-vpc cases and see that both are invoked now when isolated-vpc is true or else only spot pricing is updated.

[jonathan-innis]

LGTM 🚀