Enable logging on all test pillars

Set `log_appender: true` and enable all loggers on
all test pillars.

Change-Id: I57dcd030d5fdbde98250ef5eafd54f4cf62343b3
Related-Prod: PROD-23724 (PROD:23724)
diff --git a/metadata.yml b/metadata.yml
index d952ea0..39ba14b 100644
--- a/metadata.yml
+++ b/metadata.yml
@@ -6,3 +6,6 @@
     source: "https://gerrit.mcp.mirantis.com/salt-formulas/keystone"
   - name: apache
     source: "https://gerrit.mcp.mirantis.com/salt-formulas/apache"
+  - name: oslo_templates
+    repo: git
+    source: https://gerrit.mcp.mirantis.com/salt-formulas/oslo-templates