Downgrade surefire (see https://issues.apache.org/jira/browse/SUREFIRE-1827).

Author: uhafner

pom.xml

@@ -49,8 +49,8 @@
     <spotbugs-maven-plugin.version>4.0.4</spotbugs-maven-plugin.version>
     <findsecbugs-plugin.version>1.10.1</findsecbugs-plugin.version>
     <jacoco-maven-plugin.version>0.8.5</jacoco-maven-plugin.version>
-    <maven-surefire.plugin>3.0.0-M5</maven-surefire.plugin>
-    <maven-failsafe.plugin>3.0.0-M5</maven-failsafe.plugin>
+    <maven-surefire.plugin>3.0.0-M4</maven-surefire.plugin>
+    <maven-failsafe.plugin>3.0.0-M4</maven-failsafe.plugin>
     <maven-javadoc-plugin.version>3.2.0</maven-javadoc-plugin.version>
     <maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
     <maven-dependency-plugin.version>3.1.2</maven-dependency-plugin.version>