Bump grpc-web-gwt-fetch to snapshot for continued development

Author: niloc132

grpc-web-gwt-fetch/pom.xml

@@ -11,7 +11,7 @@
 
     <artifactId>grpc-web-gwt-fetch</artifactId>
     <packaging>gwt-lib</packaging>
-    <version>1.3.0</version>
+    <version>1.3.1-SNAPSHOT</version>
     <name>gRPC-web fetch() implementation</name>
     <description>
         A gRPC Channel implementation for gRPC-web that uses the browser fetch() API to make requests.