chore(deps): update dependency @sourcegraph/prettierrc to v3

Author: renovate-bot

package-lock.json

@@ -64,7 +64,7 @@
   "devDependencies": {
     "@commitlint/cli": "^7.6.0",
     "@commitlint/config-conventional": "^7.6.0",
-    "@sourcegraph/prettierrc": "^2.2.0",
+    "@sourcegraph/prettierrc": "^3.0.0",
     "@sourcegraph/tsconfig": "^3.0.0",
     "@sourcegraph/tslint-config": "^12.3.1",
     "@types/chai": "4.1.7",