upgrade wedpr-gateway-sdk version to 3.0.0 (#204)

Author: cyjseagull

build.gradle

@@ -64,7 +64,7 @@ ext {
     guavaVersion = "32.0.1-jre"
     bcprovVersion = "1.78.1"
     googleAutoServiceVersion = "1.1.1"
-    wedprGatewaySDKVersion = "3.0.0-SNAPSHOT"
+    wedprGatewaySDKVersion = "3.0.0"
     gsonVersion = "2.10.1"
     servletApiVersion="4.0.1"
     javaeeApiVersion="8.0.1"
@@ -99,7 +99,7 @@ ext {
 // integrationTest.mustRunAfter test
 allprojects {
     group = 'com.webank.wedpr'
-    version = '3.0.0-SNAPSHOT'
+    version = '3.0.0'
     apply plugin: 'maven-publish'
     apply plugin: 'com.github.sherter.google-java-format'
     apply plugin: 'idea'