Authservice: Update redis subchart

This MR contains the following updates:

Package	Update	Change
https://repo1.dso.mil/platform-one/big-bang/apps/application-utilities/redis.git	patch	16.12.3-bb.3 -> 16.12.3-bb.4

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Release Notes

platform-one/big-bang/apps/application-utilities/redis

v16.12.3-bb.4

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