Gatekeeper: Update OPA to 3.5.2

Package Owner Merge Request

Package Changes

• Updated OPA to 3.5.2

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

• https://repo1.dso.mil/platform-one/big-bang/apps/core/policy/-/merge_requests/95

Closes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/697