feat: Default to clusters OIDC issuer URL for aws_eks_identity_provider_config (#2190)

feat: setting oidc issuer as default option for aws_eks_identity_provider_config

Co-authored-by: Bryant Biggs <bryantbiggs@gmail.com>

examples/complete/main.tf

@@ -196,6 +196,13 @@ module "eks" {
     }
   }
 
+  # OIDC Identity provider
+  cluster_identity_providers = {
+    sts = {
+      client_id = "sts.amazonaws.com"
+    }
+  }
+
   # aws-auth configmap
   manage_aws_auth_configmap = true