fix: bump flatten plugin version to fix missing version in profile section issue (#159)

Author: stephaniewang526

pom.xml

@@ -223,7 +223,7 @@
         <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>flatten-maven-plugin</artifactId>
-          <version>1.2.2</version>
+          <version>1.2.3</version>
           <executions>
             <!-- enable flattening -->
             <execution>