fix: panic in CreateOrGetUser when user has no emails

response.Emails[0].Value in the slog.Warn call would panic if the
user retrieved from AWS SSO had no emails (e.g. data inconsistency).

Replace with (*User)(response).GetPrimaryEmailAddress() which already
exists on the User type and safely returns an empty string when no
primary email is found.

Author: christiangda

pkg/aws/scim.go

@@ -340,7 +340,7 @@ func (s *SCIMService) CreateOrGetUser(ctx context.Context, cur *CreateUserReques
 					"externalId", response.ExternalID,
 					"active", response.Active,
 					"displayName", response.DisplayName,
-					"email", response.Emails[0].Value,
+					"email", (*User)(response).GetPrimaryEmailAddress(),
 				)
 
 				pur := &PutUserRequest{