NLB Security groups

[szuecs]

https://aws.amazon.com/about-aws/whats-new/2023/08/network-load-balancer-supports-security-groups/

Now that NLB supports SG we should add it similar to the alb.

[spr-mweber3]

Hey guys, any update on this? Just was reminded of this and was wondering if you still plan to implement that. Would be interesting for us to have that feature.

[szuecs]

Feel free to create a PR.
We are happy to get one to review and merge if tests and docs are provided.
Thanks 🙏🏽