Added HTTP Check for FIPS endpoint

[jeremymcgee73]

Issue #, if available: #1984 Description of changes:

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There is a bug when you have enabled FIPS on the image, in a region with FIPS endpoints, and have VPC endpoints enabled. The issue is that the check implemented in https://github.com/awslabs/amazon-eks-ami/pull/1524 , checks to see if the FIPS endpoint resolves. In an isolated environment, the endpoint does resolve. But, there is not a FIPS enabled ECR VPC endpoint available. I switched the check from being a DNS request, to a HTTP call.

Testing Done I used packer to build an Al2023 node with FIPS enabled to test. I also used the same code in a RHEL build downstream.

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