Enable monitoring istio injection

Package Owner Merge Request

Package Changes

• enable istio-injection on monitoring namespace
• added prometheus sidecar config
• added containers to terminate istio-proxy when admissionWebhook job completes
• egress network policy to istio resources
• Istio AuthorizationPolicy for intra monitoring namespace communications (previously were being protected by authservice)
• Istio AuthorizationPolicy for Kiali to prometheus communications

BigBang Changes

• Removing virtualservice values for monitoring package to not point to haproxy, but reverting back to the normal istio-injected prometheus/alertmanager services.
• Added authservice as monitoring HelmRelease dependency

Links to all MRs that are associated with this change are required.

• https://repo1.dso.mil/platform-one/big-bang/apps/core/monitoring/-/merge_requests/74
• https://repo1.dso.mil/platform-one/big-bang/apps/core/monitoring/-/merge_requests/80
• https://repo1.dso.mil/platform-one/big-bang/apps/core/monitoring/-/merge_requests/85
• https://repo1.dso.mil/platform-one/big-bang/apps/core/monitoring/-/merge_requests/88

Additional Details

Closes https://repo1.dso.mil/platform-one/big-bang/apps/core/monitoring/-/issues/23

Closes https://repo1.dso.mil/platform-one/big-bang/apps/core/monitoring/-/issues/48

Closes #872 (closed)

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