Bumps patch version also in pom.xml

This change is related to #241 where version number in various places were bumped. It seems that the one in pom.xml should also be updated.

Author: PrimosK

pom.xml

@@ -8,7 +8,7 @@
 
     <groupId>com.microsoft.graph</groupId>
     <artifactId>microsoft-graph-core</artifactId>
-    <version>2.0.2</version>
+    <version>2.0.7</version>
     <packaging>pom</packaging>
 
     <properties>
@@ -50,4 +50,4 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-</project>
+</project>