Resolve "Create Istio authorization policies and Service Entry for mimir"

General MR

Summary

Make sure Mimir has correct Istio Auth Policies for access to minio and s3, and from alloy, prometheus, and grafana

Relevant logs/screenshots

(Include any relevant logs/screenshots)

Linked Issue

#29 (closed)

Upgrade Notices

N/A

Closes #19 (closed)