Update dependency start-server-and-test to v1.12.1

Author: renovate-bot

package-lock.json

@@ -67,7 +67,7 @@
     "pluralize": "8.0.0",
     "prettier": "2.2.1",
     "reveal.js": "4.1.0",
-    "start-server-and-test": "1.12.0",
+    "start-server-and-test": "1.12.1",
     "tsify": "4.0.1",
     "typescript": "4.1.5",
     "vite": "2.0.4"

package.json

@@ -14,7 +14,7 @@
     "babel-plugin-istanbul": "5.2.0",
     "babel-plugin-transform-class-properties": "6.24.1",
     "parcel-bundler": "1.12.4",
-    "start-server-and-test": "1.12.0"
+    "start-server-and-test": "1.12.1"
   },
   "dependencies": {
     "classnames": "2.2.6",