dcaegen2 policy-handler CI job change

Add tox-envs and change python-version

Issue-ID: DCAEGEN2-2292

Signed-off-by: Michal Jagiello <michal.jagiello@t-mobile.pl>
Change-Id: I522bc71f56d58674eedf909bec68edf2b479df15
diff --git a/jjb/dcaegen2/dcaegen2-platform-policy-handler.yaml b/jjb/dcaegen2/dcaegen2-platform-policy-handler.yaml
index dca4daa..ea80103 100644
--- a/jjb/dcaegen2/dcaegen2-platform-policy-handler.yaml
+++ b/jjb/dcaegen2/dcaegen2-platform-policy-handler.yaml
@@ -3,9 +3,9 @@
     name: dcaegen2-platform-policy-handler
     project-name: 'dcaegen2-platform-policy-handler'
     project: 'dcaegen2/platform/policy-handler'
-    python-version: python3.6
+    python-version: python3
     tox-dir: '.'
-    tox-envs: ''
+    tox-envs: 'py3'
     stream:
       - 'master':
           branch: 'master'