feat(openvpn): use standard test pillar path

* Found while working on #27, i.e.:
  - saltstack-formulas/template-formula#164

Author: myii

ssf/defaults.yaml

@@ -15,8 +15,8 @@ ssf_node_anchors:
             #       An alternative method could be to use:
             #       `git describe --abbrev=0 --tags`
             # yamllint disable-line rule:line-length
-            title: 'ci: use `dist: bionic` & apply `opensuse-leap-15` SCP error workaround'
-            body: '* Automated using https://github.com/myii/ssf-formula/pull/22'
+            title: 'chore: use standard test pillar path'
+            body: '* Semi-automated using https://github.com/myii/ssf-formula/pull/28'
           github:
             owner: saltstack-formulas
             repo: ''

ssf/formulas.yaml

@@ -712,7 +712,7 @@ ssf:
                 Verify that the openvpn formula is setup and configured correctly
             provisioner:
               pillars_from_files:
-                - .sls: test/integration/repositories/pillars.sls
+                - .sls: test/salt/pillar/default.sls
               state_top:
                 - '*':
                     - .config