update github actions

Author: marianapatcosta

.github/workflows/deploy.yml

@@ -26,7 +26,10 @@ jobs:
       - name: Run Cypress tests
         uses: cypress-io/github-action@v4
         with:
+          start: yarn start
           browser: chrome
+          wait-on: "http://localhost:3000"
+          headless: true
       - name: Build app
         run: yarn build
       - name: Deploy to gh-pages

cypress.json

@@ -2,5 +2,6 @@
   "component": {
     "testFiles": "**/*.test.{js,ts,jsx,tsx}",
     "componentFolder": "src"
-  }
+  },
+  "baseUrl": "http://localhost:3000"
 }