fix: yaml-lint compatible workflow_dispatch in autoupdate workflow

Author: markuslf

.github/workflows/pre-commit-autoupdate.yml

@@ -3,7 +3,7 @@ name: 'Update pre-commit hooks'
 on:
   schedule:
     - cron: '0 8 * * 1'
-  workflow_dispatch:
+  workflow_dispatch: {}
 
 permissions:
   contents: 'write'
@@ -34,4 +34,3 @@ jobs:
           title: 'chore: update pre-commit hooks'
           body: 'Automatic pre-commit hook version update.'
           branch: 'chore/pre-commit-autoupdate'
-