ci: see if this limits running actions

.forgejo/workflows/geyser.yml

@@ -3,6 +3,10 @@ on:
   schedule:
     - cron: '0 0 * * *'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   update: