fix(workflows): run the bot only in the original repository

Currently, the bot also runs in all forks and generates an error every day, which is sent to the owner of the fork via email. This is somewhat annoying.

Author: McPringle

.github/workflows/reminder-bot-execution.yml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   run-bot:
+    if: github.repository_owner == 'hackergarten'
     runs-on: ubuntu-latest
     environment: reminder-bot-automation