CI: Test ironic also when nova role is modified

Change-Id: I9773a7c4f7a5d31a83c10562057ce772439b9693
Signed-off-by: Radosław Piliszek <radoslaw.piliszek@gmail.com>

zuul.d/base.yaml

@@ -44,7 +44,7 @@
     parent: kolla-ansible-base
     voting: false
     files:
-      - ^ansible\/roles\/ironic\/.*
+      - ^ansible/roles/(ironic|nova)/
       - ^tests/test-ironic.sh
     vars:
       scenario: ironic