Draft: Resolve "Renovate: Upgrade OPA Gatekeeper Package Dependencies"

General MR

Summary

• Updated gluon 0.4.9 -> 0.5.0
• Updated registry1.dso.mil/ironbank/opensource/openpolicyagent/gatekeeper from v3.15.1 -> 3.16.0

Linked Issue

issue

Upgrade Notices

N/A