.github/settings.yml: various

- add nix-community-buildbot topic

- remove hercules-ci push permission

.github/settings.yml

@@ -11,7 +11,7 @@ repository:
   homepage: "https://nix-community.org"
 
   # A comma-separated list of topics to set on the repository
-  topics: "terraform, nixos"
+  topics: "terraform, nixos, nix-community-buildbot"
 
   # Either `true` to make the repository private, or `false` to make it public.
   private: false
@@ -152,6 +152,6 @@ branches:
       required_linear_history: false
       # Required. Restrict who can push to this branch. Team and user restrictions are only available for organization-owned repositories. Set to null to disable.
       restrictions:
-        apps: ["hercules-ci"]
+        apps: []
         users: ["nix-infra-bot"]
         teams: []