github/maintainers: Change scope to repo. "contents: read" seems to no longer be guaranteed. actions/checkout#445

Author: jpmckinney

docs/github/maintainers.rst

@@ -69,7 +69,7 @@ Onboard consultants or Start a project
 
    .. note::
 
-      The ``PAT`` environment variable is a personal access token of the ``ocp-deploy`` user with a ``repo:public_repo`` scope. This user is the only member of the Robots team, which needs permission to push fixes to protected branches.
+      The ``PAT`` environment variable is a personal access token of the ``ocp-deploy`` user with a ``repo`` scope. This user is the only member of the Robots team, which needs permission to push fixes to protected branches.
 
 #. Add the new repositories to `pre-commit ci <https://github.com/organizations/open-contracting/settings/installations/20658712>`__
 #. Add the new repositories to `Coveralls <https://coveralls.io/repos/new>`__