Update developerConnection in scm config

In other to automatically push new development version
in release:prepare phase in CI machine

Author: Binh Pham

pom.xml

@@ -25,7 +25,7 @@
     <scm>
         <url>git@github.com:gooddata/gooddata-java.git</url>
         <connection>scm:git:git@github.com:gooddata/gooddata-java.git</connection>
-        <developerConnection>scm:git:${basedir}</developerConnection>
+        <developerConnection>scm:git:git@github.com:gooddata/gooddata-java.git</developerConnection>
         <tag>HEAD</tag>
     </scm>