Bug 2002823 - [ci] Switch to a dedicated 'enterprise' trust domain

Author: ahal

.taskcluster.yml

@@ -341,7 +341,7 @@ tasks:
     - $if: 'tasks_for in ["github-push"]'
       then:
           $let:
-              trustDomain: gecko
+              trustDomain: enterprise
               level: 1
               ownerEmail: '${event.pusher.email}'
               baseRepoUrl: '${event.repository.html_url}'

taskcluster/config.yml

@@ -2,7 +2,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 ---
-trust-domain: gecko
+trust-domain: enterprise
 project-repo-param-prefix: ''
 product-dir: 'browser'
 treeherder: