fix: simplify input parameters for translation cron workflow dispatch (#21487)

Author: shhdgit

.github/workflows/translation-cron.yml

@@ -23,7 +23,7 @@ jobs:
           -H "Accept: application/vnd.github+json" \
           -H "Authorization: token ${{ github.token }}" \
           https://api.github.com/repos/${{ github.repository }}/actions/workflows/translation-zh.yaml/dispatches \
-          -d '{"ref":"master","inputs":{"branch":"master"}}'
+          -d '{"ref":"master"}'
 
   # build a matrix of branches to translate, including LTS and Cloud
   build-matrix: