Update dependency start-server-and-test to v1.15.4

Author: renovate[bot]

package-lock.json

@@ -11,7 +11,7 @@
     "cypress": "9.7.0",
     "cypress-image-snapshot": "4.0.1",
     "eslint-plugin-cypress": "2.12.1",
-    "start-server-and-test": "1.14.0",
+    "start-server-and-test": "1.15.4",
     "tailwindcss": "1.9.6"
   },
   "scripts": {