Update hardening_manifest.yaml with additional assignee

hardening_manifest.yaml

@@ -42,6 +42,10 @@ maintainers:
   - name: "Al Fontaine"
     username: "alfontaine"
     email: "alan.fontaine@centauricorp.com"
+  - email: "adam.martin@rancherfederal.com"
+    name: "Adam Martin"
+    username: "adam.martin"
+    cht_member: true
 resources: 
   - url: "https://gitlab-ubi.s3.amazonaws.com/ubi8-build-dependencies-v14.0.5-ubi8/gitlab-task-runner-ee.tar.gz"
     filename: "gitlab-task-runner-ee.tar.gz"