missing the first v in the version string

Author: stanley-cheung

grpc-common-spring-boot/src/main/java/net/devh/boot/grpc/common/util/Constants.java

@@ -24,7 +24,7 @@ public final class Constants {
     /**
      * A constant that defines the current version of the library.
      */
-    public static final String VERSION = Constants.class.getPackage().getImplementationVersion();
+    public static final String VERSION = "v"+Constants.class.getPackage().getImplementationVersion();
 
 
     /**