Fix flaky tests (#1123)

setting environment variable SYSTEMROOT to fix 'Unrecognized Windows Sockets error: 10106: create'

Author: oliverlietz

containers/pax-exam-container-forked/pom.xml

@@ -175,6 +175,9 @@
                 <artifactId>maven-failsafe-plugin</artifactId>
                 <configuration>
                     <redirectTestOutputToFile>true</redirectTestOutputToFile>
+                    <environmentVariables>
+                      <SYSTEMROOT>C:\windows</SYSTEMROOT>
+                    </environmentVariables>
                 </configuration>
             </plugin>
         </plugins>