wip: GITHUB_TOKEN gets set, but shouldn't bet set

.forgejo/workflows/check.yml

@@ -1,15 +1,12 @@
 name: Flake checks
 on: [push]
 
-env_files:
-  # override gitea actions which passes GITHUB_TOKEN to set env var as null
-  github_token: /dev/null
-
 jobs:
   Check:
     runs-on: ubuntu-latest
     env:
       USER: root
+      GITHUB_TOKEN: ""
     steps:
       - name: Check out repository code
         uses: https://code.forgejo.org/actions/checkout@v4