Description of problem (please be detailed as possible and provide log
snippests):
noobaa operator code is missing 'ap-southeast-5' AWS region

Version of all relevant components (if applicable):
4.17.0-126

Does this issue impact your ability to continue to work with the product
(please explain in detail what is the user impact)?

Is there any workaround available to the best of your knowledge?

Rate from 1 - 5 the complexity of the scenario you performed that caused this
bug (1 - very simple, 5 - very complex)?
1

Can this issue reproducible?
Yes

Can this issue reproduce from the UI?
NA

If this is a regression, please provide more details to justify this:

Steps to Reproduce:
AWS supported regions: https://docs.aws.amazon.com/general/latest/gr/rande.html

Noobaa supported regions: https://github.com/noobaa/noobaa-operator/blob/master/pkg/util/util.go#L1108

Actual results:
noobaa operator code is missing 'ap-southeast-5' AWS region

Expected results:
all the regions should be present in the noobaa operator code

Additional info: