Remove test case name from class name

The validations framework currently puts test case name
as part of the class name field, which in the end means
that the test case name is duplicated,
e.g. as it is processed by Polarion or other JUnit parser.

This change alters the class name field to be just `validations`.

Author: sdatko

roles/validations/filter_plugins/cifmw_validations_xml_filter.py

@@ -39,8 +39,8 @@
       <?xml version='1.0' encoding='utf-8'?>
       <testsuites>
         <testsuite name="validations" failures="0" skipped="0" tests="2" errors="1" time="7.090">
-          <testcase name="test-1" classname="validations.test-1" time="2.545" />
-          <testcase name="test-2" classname="validations.test-2" time="4.545">
+          <testcase name="test-1" classname="validations" time="2.545" />
+          <testcase name="test-2" classname="validations" time="4.545">
             <error message="error message" />
           </testcase>
         </testsuite>
@@ -80,7 +80,7 @@ def __map_xml_results(cls, test_results):
             },
         )
         for name, data in test_results.items():
-            attributes = {"name": name, "classname": f"validations.{name}"}
+            attributes = {"name": name, "classname": "validations"}
             if "time" in data:
                 attributes["time"] = cls.__float_conversion(data["time"])
             tc_elm = ET.SubElement(ts_elm, "testcase", attrib=attributes)