ci: edit workflow_dispath

Signed-off-by: Christina Sørensen <christina@cafkafk.com>

.github/workflows/flakehub-publish-tagged.yml

@@ -1,5 +1,5 @@
-on: workflow_dispatch
-on:
+on: 
+  workflow_dispatch
   push:
     tags:
       - "v*.*.*"