Radius support for AWS IRSA (#51)

design document to support AWS IRSA in Radius.

---------

Signed-off-by: nithyatsu <[email protected]>
Signed-off-by: Karishma Chawla <[email protected]>
Co-authored-by: Karishma Chawla <[email protected]>

Author: nithyatsu

.github/config/en-custom.txt

@@ -697,6 +697,35 @@ reimplement
 keyspace
 upsert
 TTL
+IRSA
+Entra
+radified
+OpenID
+multitenancy
+roleARN
+AWSCredentialProvider
+AssumeRole
+AssumeRoleProvider
+STS
+assumeRoleProviders
+stscreds
+AWSCredential
+AWSCredentialProvider
+ctx
+func
+newAWSConfig
+nithya
+planeName
+POC
+TokenExpirationSeconds
+amazonaws
+serviceaccount
+oidc
+assumeRoleProvider
+TokenExpirationSeconds
+amazonaws
+serviceaccount
+arns
 Tsai
 willtsai
 ArgoCD