Add AWS authentication method for Vault

[yuriytkach]

Description
Currently Quarkus supports 4 auth methods for Vault: token, userpass, approle and k8s.
Let's add the AWS auth method (https://www.vaultproject.io/docs/auth/aws).
This will greatly benefit lambda functions developed using Quarkus that require Vault access, as auth would be possible with aws iam role of the function.

[sberyozkin]

CC @vsevel

[sunildparte]

Is there any update on this?

[kdubb]

@sberyozkin Should this moved to quarkus-vault?

I'm curious how this would be tested? I'm familiar with Vault's iam and ec2 methods and obviously both require it running on AWS. I'm not sure if there is a way to fake it or not.

[gsmet]

We cannot move things cross organization but yes, it would be better here: https://github.com/quarkiverse/quarkus-vault/ .

I don't know exactly for testing but for the Amazon Services extensions we are using localstack.

[es89247]

Is there any update on this?