feat: invalidate SSM cache upon AMI deprecation (#7301)

[jmdeal]

Fixes #N/A

Description
Backports #7301 to the v1 release branch.

How was this change tested?
make test

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.

[coveralls]

Pull Request Test Coverage Report for Build 11708944369

Details

• 114 of 144 (79.17%) changed or added relevant lines in 14 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.09%) to 79.285%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controllers/controllers.go	0	2	0.0%
pkg/providers/amifamily/ami.go	15	17	88.24%
pkg/apis/v1/ec2nodeclass.go	15	18	83.33%
pkg/operator/operator.go	0	5	0.0%
pkg/controllers/providers/ssm/invalidation/controller.go	35	43	81.4%
pkg/apis/v1/zz_generated.deepcopy.go	0	10	0.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/providers/amifamily/ami.go	1	90.91%

Totals
Change from base Build 11620447635:	-0.09%
Covered Lines:	6032
Relevant Lines:	7608

---

💛 - Coveralls

[rschalo]

LGTM