Bump openpolicyagent/kube-mgmt (#496)

Bumps the csm-authorization group with 1 update in the /charts/csm-authorization-v2.0 directory: openpolicyagent/kube-mgmt.


Updates `openpolicyagent/kube-mgmt` from 8.5.7 to 8.5.8

---
updated-dependencies:
- dependency-name: openpolicyagent/kube-mgmt
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: csm-authorization
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

charts/csm-authorization-v2.0/values.yaml

@@ -31,7 +31,7 @@ authorization:
     opa:
       image: openpolicyagent/opa
     opaKubeMgmt:
-      image: openpolicyagent/kube-mgmt:8.5.7
+      image: openpolicyagent/kube-mgmt:8.5.8
 
   # proxy-server ingress will use this hostname
   # NOTE: additional hostnames can be configured in authorization.proxyServerIngress.hosts