Run tests in parallel to speed up build

Author: jeanbisutti

src/test/resources/junit-platform.properties

@@ -1,2 +1,6 @@
 junit.jupiter.displayname.generator.default = \
-    org.junit.jupiter.api.DisplayNameGenerator$ReplaceUnderscores
+    org.junit.jupiter.api.DisplayNameGenerator$ReplaceUnderscores
+
+junit.jupiter.execution.parallel.enabled = true
+junit.jupiter.execution.parallel.mode.default = same_thread
+junit.jupiter.execution.parallel.mode.classes.default = concurrent