AuthProxy: Support Regexps when checking if path requires auth

Change-Id: I3bc6d3143cef46b711bb3ccc7e2cb1ee8c59313f
diff --git a/charts/auth-proxy/values.yaml b/charts/auth-proxy/values.yaml
index 45bc602..df26e50 100644
--- a/charts/auth-proxy/values.yaml
+++ b/charts/auth-proxy/values.yaml
@@ -10,4 +10,4 @@
 membershipPublicAddr: https://memberships.p.example.com
 groups: ""
 portName: http
-noAuthPathPrefixes: ""
+noAuthPathPatterns: ""