Chore: Report betterer stats in ci-frontend-metrics (#47210)

* Chore: Report betterer stats to graphite

* PR feedback

* use camelCase from lodash instead

package.json

@@ -54,7 +54,8 @@
     "i18n:extract": "lingui extract",
     "i18n:compile": "lingui compile",
     "postinstall": "husky install",
-    "betterer": "betterer"
+    "betterer": "betterer",
+    "betterer:stats": "ts-node --transpile-only --project ./scripts/cli/tsconfig.json ./scripts/cli/reportBettererStats.ts"
   },
   "grafana": {
     "whatsNewUrl": "https://grafana.com/docs/grafana/next/whatsnew/whats-new-in-v8-4/",
@@ -86,6 +87,7 @@
     "@babel/preset-env": "7.16.11",
     "@babel/preset-react": "7.16.7",
     "@babel/preset-typescript": "7.16.7",
+    "@betterer/betterer": "5.1.7",
     "@betterer/cli": "5.1.7",
     "@betterer/regexp": "5.1.7",
     "@emotion/eslint-plugin": "11.7.0",