fix(treasury): invalid SSM client construction

backend/backend.go

@@ -36,7 +36,7 @@ func New(options Options) (BackendAPI, error) {
 	case s3Name:
 		return s3.New(options.Region, options.S3BucketName)
 	case ssmName:
-		return ssm.New(options.Region, options.AWSConfig)
+		return ssm.New(options.AWSConfig)
 	}
 	return nil, errors.New("invalid backend")
 }

backend/ssm/aws.go

@@ -2,10 +2,8 @@ package ssm
 
 import (
 	"context"
-	"fmt"
 
 	"github.com/aws/aws-sdk-go-v2/aws"
-	"github.com/aws/aws-sdk-go-v2/config"
 	"github.com/aws/aws-sdk-go-v2/service/ssm"
 )
 
@@ -21,13 +19,8 @@ type Client struct {
 	svc SSMClientInterface
 }
 
-func New(region string, awsConfig aws.Config) (*Client, error) {
-	cfg, err := config.LoadDefaultConfig(context.Background(), config.WithRegion(region))
-	if err != nil {
-		return nil, fmt.Errorf("failed to load AWS configuration. Error: %s", err)
-	}
-
+func New(awsConfig aws.Config) (*Client, error) {
 	return &Client{
-		svc: ssm.NewFromConfig(cfg),
+		svc: ssm.NewFromConfig(awsConfig),
 	}, nil
 }

backend/ssm/aws_test.go

@@ -34,7 +34,7 @@ func TestNew(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			_, err := ssm.New(tt.region, tt.config)
+			_, err := ssm.New(tt.config)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("New() error = %v, wantErr %v", err, tt.wantErr)
 				return