fix un-compatible methods type

src/puppet-web/puppet-web.ts

@@ -266,7 +266,7 @@ export class PuppetWeb extends Puppet {
                 })
   }
 
-  public reset(reason?: string) {
+  public reset(reason?: string): void {
     log.verbose('PuppetWeb', 'reset(%s)', reason)
 
     if (this.browser) {

src/puppet.ts

@@ -80,7 +80,7 @@ export abstract class Puppet extends EventEmitter implements Sayable {
   // @deprecated
   public abstract reply(message: Message, reply): Promise<void>
 
-  public abstract reset(reason?: string): Promise<void>
+  public abstract reset(reason?: string): void
   public abstract logout(): Promise<void>
   public abstract quit(): Promise<void>