chore: update ref to main

Author: trivikr

packages/types/src/client.ts

@@ -24,7 +24,7 @@ interface InvokeFunction<InputTypes extends object, OutputTypes extends Metadata
 
 /**
  * A general interface for service clients, idempotent to browser or node clients
- * This type corresponds to SmithyClient(https://github.com/aws/aws-sdk-js-v3/blob/master/packages/smithy-client/src/client.ts).
+ * This type corresponds to SmithyClient(https://github.com/aws/aws-sdk-js-v3/blob/main/packages/smithy-client/src/client.ts).
  * It's provided for using without importing the SmithyClient class.
  */
 export interface Client<Input extends object, Output extends MetadataBearer, ResolvedClientConfiguration> {