Resolve "Enable Istio Auth Policies for Testing"

General MR

Summary

Enable istio hardening for testing

Relevant logs/screenshots

n/a

Linked Issue

#34 (closed)

Upgrade Notices

n/a

relates to #34 (closed)

chart/Chart.yaml

@@ -3,7 +3,7 @@ name: promtail
 description: Promtail is an agent which ships the contents of local logs to a Loki instance
 type: application
 appVersion: v2.9.2
-version: 6.15.3-bb.2
+version: 6.15.3-bb.3
 home: https://grafana.com/loki
 sources:
   - https://github.com/grafana/loki