Update SDK's smithy-go dependency to v1.13.0

Author: AWS SDK for Go v2 automation user

modman.toml

@@ -1,7 +1,7 @@
 
 [dependencies]
   "github.com/aws/aws-sdk-go" = "v1.44.28"
-  "github.com/aws/smithy-go" = "v1.12.2-0.20220825202034-eec4392b3806"
+  "github.com/aws/smithy-go" = "v1.13.0"
   "github.com/google/go-cmp" = "v0.5.8"
   "github.com/jmespath/go-jmespath" = "v0.4.0"
   "golang.org/x/net" = "v0.0.0-20220127200216-cd36cc0744dd"