Use seperate test_operator artifacts basedir for update test run

Save test_operator test runs to seperate test_operator_update dir
to prevent overriding test_operators deployment run results with
update run.

update-edpm.yml

@@ -25,6 +25,7 @@
   vars:
     pre_tests: "{{ (lookup('vars', 'pre_tempest', default=[])) }}"
     post_tests: "{{ (lookup('vars', 'post_tempest', default=[])) }}"
+    cifmw_test_operator_artifacts_basedir: "{{ cifmw_basedir|default(ansible_user_dir ~ '/ci-framework-data') }}/tests/test_operator_update"
   when:
     - cifmw_run_tests | default('false') | bool
   tags: