get commit messages from upstream

Author: banana-bred

.github/workflows/fpm-deployment.yml

@@ -1,6 +1,6 @@
 name: fpm-deployment
 
-on: [push, pull_request]
+on: [push, pull, pull_request]
 
 jobs:
   test:

.github/workflows/sync.yml

@@ -32,6 +32,11 @@ jobs:
         run: |
           git merge upstream/master --allow-unrelated-histories --no-edit
 
+      - name: match upstream's commit message
+        run: |
+          MSG="$(git log -1 --pretty=%B upstream/master)"
+          git commit --amend -m "$MSG"
+
       - name: commit & push
         run: |
           git config user.name "github-actions[bot]"