Update version to 1.0.3 for NetCraft update

Author: satoshinm

pom.xml

@@ -2,7 +2,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>io.github.satoshinm</groupId>
   <artifactId>WebSandboxMC</artifactId>
-  <version>1.0.2</version>
+  <version>1.0.3</version>
   <name>WebSandboxMC</name>
   <url>https://github.com/satoshinm/WebSandboxMC</url>