Get 500 When trying to add ecr-public registry mirror

[goshlanguage]

Is your feature request related to a problem? Please describe.

Currently you can add any endpoint that matches the following regex:

ecrPattern = "https://(?:api|(\\d+)\\.dkr)\\.ecr(\\-fips)?\\.([\\w\\-]+)\\.(amazonaws\\.com(\\.cn)?|sc2s\\.sgov\\.gov|c2s\\.ic\\.gov)"

source: src/pkg/reg/adapter/awsecr/adapter.go

This unfortunately excludes the public mirrors such as ecr-public.REGION.amazonaws.com.
As I'm wanting to mirror this specifically but am unable to, I'd love to add it to the regex.

Describe the solution you'd like
Update regex so it allows you to submit ecr-public.us-east-1.amazonaws.com for example.

Additional context
N/A