fix: ci 설정

Author: Soohyuniii

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Create .env.production file
         run: |
           echo "NODE_ENV=production" > .env.production 
-          echo "MODE=production" > .env.production  
+          echo "MODE=production" >> .env.production  
           echo "VITE_GA_MEASUREMENT_ID=${{ secrets.VITE_GA_MEASUREMENT_ID }}" >> .env.production
 
       - name: Install dependencies