chore(deps): update module aws/aws-sdk-go to v1.28.6

Author: renovate-bot

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/Microsoft/go-winio v0.4.12 // indirect
 	github.com/ajg/form v1.5.1 // indirect
 	github.com/aws/aws-lambda-go v1.11.1
-	github.com/aws/aws-sdk-go v1.28.5
+	github.com/aws/aws-sdk-go v1.28.6
 	github.com/cenkalti/backoff v2.2.1+incompatible
 	github.com/cenkalti/backoff/v4 v4.0.0
 	github.com/certifi/gocertifi v0.0.0-20190506164543-d2eda7129713 // indirect