Change visibility of Options to public (#55)

Author: hanahmily

src/main/java/org/apache/skywalking/banyandb/v1/client/Options.java

@@ -26,7 +26,7 @@
 /**
  * Client connection options.
  */
-@Setter
+@Setter(AccessLevel.PUBLIC)
 @Getter(AccessLevel.PUBLIC)
 public class Options {
     /**
@@ -67,7 +67,7 @@ public class Options {
      */
     private String sslKeyPath = "";
 
-    Options() {
+    public Options() {
     }
 
     ChannelManagerSettings buildChannelManagerSettings() {