chore: pin netlify-cli version on ui deploy script

.github/workflows/ui.yml

@@ -36,7 +36,7 @@ jobs:
 
       # Deploy the ui site with netlify-cli
       - name: Deploy to Netlify (ui)
-        run: npx netlify-cli deploy --dir=packages/hoppscotch-ui/.histoire/dist --prod
+        run: npx netlify-cli@15.11.0 deploy --dir=packages/hoppscotch-ui/.histoire/dist --prod
         env:
           NETLIFY_SITE_ID: ${{ secrets.NETLIFY_UI_SITE_ID }}
           NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}