fix: ignore redirect statuses in Ktor engine (#590)

Author: ianbotsf

runtime/protocol/http-client-engines/http-client-engine-ktor/jvm/src/aws/smithy/kotlin/runtime/http/engine/ktor/KtorEngine.kt

@@ -72,7 +72,11 @@ actual class KtorEngine actual constructor(
 
         // do not throw exceptions if status code < 300, error handling is expected by generated clients
         expectSuccess = false
+
+        // do not attempt to follow redirects for status codes like 301 because they should be handled higher up
+        followRedirects = false
     }
+
     private val logger = Logger.getLogger<KtorEngine>()
 
     // TODO: Remove following annotation after https://youtrack.jetbrains.com/issue/KTOR-3001 is resolved