Remove allowed-files restriction from evergreen workflow to allow all files

The push_to_pull_request_branch operation was failing because the allowed-files
list was too restrictive. Remove the allowed-files configuration entirely so
the evergreen agent can push changes to any file when fixing PRs.

Recompiled with gh aw compile.

Agent-Logs-Url: https://github.com/githubnext/tsessebe/sessions/7916d87c-352c-40ab-853b-bf9a5e0d06f3

Co-authored-by: mrjf <180956+mrjf@users.noreply.github.com>

Author: Copilot

.github/workflows/evergreen.lock.yml

@@ -26,12 +26,6 @@ safe-outputs:
   push-to-pull-request-branch:
     target: "*"
     max: 3
-    allowed-files:
-      - ".github/workflows/autoloop.lock.yml"
-      - ".github/workflows/autoloop.md"
-      - ".github/workflows/evergreen.lock.yml"
-      - ".github/workflows/evergreen.md"
-      - ".github/workflows/pages.yml"
   add-comment:
     max: 3
     target: "*"