testProxy in MavenRepositoryTest in kie-soup fails randomly

Test testProxy() fails randomly. Problem is that it checks for size from all repositories, however it needs to check just the count of test repositories that needs to be proxied.

[1] https://github.com/kiegroup/kie-soup/blob/master/kie-soup-maven-utils/kie-soup-maven-integration/src/test/java/org/appformer/maven/integration/MavenRepositoryTest.java#L52