Revert FPDC: Try to use the centos python s2i image

Signed-off-by: Clement Verna <cverna@tutanota.com>

roles/openshift-apps/fpdc/templates/buildconfig.yml

@@ -18,7 +18,8 @@ spec:
     sourceStrategy:
       from:
         kind: ImageStreamTag
-        name: python-36-centos7:latest
+        namespace: openshift
+        name: python:3.6
   triggers:
 {% if stg_fpdc_github_secret is defined %}
   - type: GitHub