[Maven] fix order of parent module information

An order other than "groupId, artifactId, version" can cause problems
with the release scripts.

This needs to be properly fixed in tools/generate_specific_pom.sh
diff --git a/flink-staging/flink-language-binding/flink-language-binding-generic/pom.xml b/flink-staging/flink-language-binding/flink-language-binding-generic/pom.xml
index a08ccce..1509935 100644
--- a/flink-staging/flink-language-binding/flink-language-binding-generic/pom.xml
+++ b/flink-staging/flink-language-binding/flink-language-binding-generic/pom.xml
@@ -21,8 +21,8 @@
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <artifactId>flink-language-binding-parent</artifactId>
         <groupId>org.apache.flink</groupId>
+        <artifactId>flink-language-binding-parent</artifactId>
         <version>0.10-SNAPSHOT</version>
         <relativePath>..</relativePath>
     </parent>