Bumped authservice chart version

Summary

This pins the current envoyfilter to Istio 1.7 and then creates a new envoy filter for 1.8 with the new naming scheme. Also changes to the 1.8 filter include typed config upgrades as well as filter names.

• proxyVersion Support - https://repo1.dso.mil/platform-one/big-bang/apps/core/istio-controlplane/-/merge_requests/29
• BB release with proxy versions - https://repo1.dso.mil/platform-one/big-bang/bigbang/-/blob/release-1.2/chart/values.yaml#L91
• Fixes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/191

Follows naming scheme istio uses

+ kubectl get envoyfilter -A
NAMESPACE      NAME                        AGE
istio-system   metadata-exchange-1.6       5d18h
istio-system   metadata-exchange-1.7       5d18h
istio-system   stats-filter-1.6            5d18h
istio-system   stats-filter-1.7            5d18h
istio-system   tcp-metadata-exchange-1.6   5d18h
istio-system   tcp-metadata-exchange-1.7   5d18h
istio-system   tcp-stats-filter-1.6        5d18h
istio-system   tcp-stats-filter-1.7        5d18h

chart/values.yaml

@@ -309,7 +309,7 @@ addons:
     git:
       repo: https://repo1.dso.mil/platform-one/big-bang/apps/core/authservice.git
       path: "./chart"
-      tag: "0.1.6-bb.3"
+      tag: "0.1.6-bb.4"
 
     # -- Values to passthrough to the authservice chart: https://repo1.dso.mil/platform-one/big-bang/apps/sandbox/authservice.git
     values: {}