fix actions

.github/workflows/gh-pages.yml

@@ -15,10 +15,8 @@ jobs:
       with:
         node-version: 25
         cache: 'npm'
-    - run: |
-           cd atmosphere/
-           npm i
-
+    - run: npm i
+      working-directory: atmosphere/
     - name: Build
       env: 
         TZ: "Asia/Tokyo"