Remove outdated comment about Surefire version

Remove outdated comment, as SUREFIRE-1302 was fixed back in 2017 and
in Maven Surefire 2.20.1, 3.0.0-M6 is much newer.

Author: avelanarius

pom.xml

@@ -740,7 +740,6 @@
 
                 <plugin>
                     <artifactId>maven-surefire-plugin</artifactId>
-                    <!-- do not upgrade until https://issues.apache.org/jira/browse/SUREFIRE-1302 is fixed -->
                     <version>3.0.0-M6</version>
                     <configuration>
                         <groups>${test.groups}</groups>