Minor: run prettier only on changed files

.github/workflows/format_vue_code.yml

@@ -9,10 +9,17 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+        with:
+          # Make sure the actual branch is checked out when running on pull requests
+          ref: ${{ github.head_ref }}
+          # This is important to fetch the changes to the previous commit
+          fetch-depth: 0
 
       - name: Prettify code
         uses: creyD/prettier_action@v4.3
         with:
           # This part is also where you can pass other options, for example:
-          prettier_options: assets/vue/**/*.{vue,js} -c
+          prettier_options: assets/vue/**/*.{vue,js} --check
+          dry: True
           only_changed: True
+