Is your feature request related to a problem?
I propose making the VPC ID validation regex configurable. With the changes introduced in this PR, the AWS Load Balancer Controller no longer supports AWS API-compatible solutions, which is a significant limitation. Even though this shouldn’t impact AWS users directly, I believe it’s a good approach regardless, as the VPC ID format has changed once before and could change again in the future.

Describe the solution you'd like
Make the regex configurable with default of current.
It can be passed as environment variable or CLI parameter or both.

Describe alternatives you've considered
Downgrade the controller version :-(

Following the rejection of the proposal, I will submit a PR to address the issue of the lowercase UUID without dashes (vpc-{uuid}).