authservice update to 0.5.3-bb.22

Package Merge Request

Package Changes

• support for istio authorization policies and hardening

Package MR

For big-bang/product/packages/authservice!135 (merged)

Relates to big-bang/product/packages/haproxy!25

For Issue

Closes big-bang/product/packages/authservice#81 (closed)

Relates to big-bang/product/packages/haproxy#15