e2e_tests.yml: Remove start dev server

since now we are doing that in `playwright.config.ts`

.github/workflows/e2e_tests.yml

@@ -43,12 +43,6 @@ jobs:
         run: npx playwright install --with-deps
         if: steps.cache-playwright.outputs.cache-hit != 'true'
 
-      - name: Start Server
-        run: npm run start &
-
-      - name: Wait for server to start
-        run: npx wait-on http://localhost:6274
-
       - name: Run Playwright tests
         run: npm run test:e2e