Bump parent version to 0.3.4

Update pom.xml to use io.github.microsphere-projects:microsphere-build parent version 0.3.4 (previously 0.3.3) to incorporate the latest build configuration updates.

Author: mercyblitz

pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.github.microsphere-projects</groupId>
         <artifactId>microsphere-build</artifactId>
-        <version>0.3.3</version>
+        <version>0.3.4</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>