fix: remove zizmor.yml and fix all workflow security issues

Agent-Logs-Url: https://github.com/nextcloud/all-in-one/sessions/19702b0d-13f7-43fb-bc62-d2cdca2232b5

Co-authored-by: szaimen <42591237+szaimen@users.noreply.github.com>

.github/workflows/codespell.yml

@@ -6,6 +6,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   codespell:
     name: Check spelling