chore: handle observed generation change in operatorpkg

[rschalo]

Fixes #N/A

Description
Adds requeueing to sub-reconcilers if a status Set() call returns false because of an observed generation mismatch.

How was this change tested?

Does this change impact docs?

• 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 11939470466

Details

• 4 of 15 (26.67%) changed or added relevant lines in 4 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 82.341%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controllers/nodeclass/status/instanceprofile.go	1	3	33.33%
pkg/controllers/nodeclass/status/securitygroup.go	1	3	33.33%
pkg/controllers/nodeclass/status/subnet.go	1	3	33.33%
pkg/controllers/nodeclass/status/ami.go	1	6	16.67%

Totals
Change from base Build 11924046371:	-0.1%
Covered Lines:	5684
Relevant Lines:	6903

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💛 - Coveralls