CI: EMF: include branch name for generator jar

bundles/emf-generator/pom.xml

@@ -65,7 +65,7 @@
               <!-- For testing new emf-generator jars, use a file:// URL.
                    NOTE: You must clean ${M2_HOME}/repository/.cache/download-maven-plugin/emf-generator.jar*
                    before. Otherwise, the previous version is used. -->
-              <url>https://git.fortiss.org/af3/ci-tools/raw/de.itemis.emfgenerator/jar/emf-generator.jar</url>
+              <url>https://git.fortiss.org/af3/ci-tools/raw/master/de.itemis.emfgenerator/jar/emf-generator.jar</url>
               <outputFileName>emf-generator.jar</outputFileName>
               <!-- default target location, just to demonstrate the parameter -->
               <outputDirectory>${project.build.directory}</outputDirectory>