fix: upgrade acorn from 8.11.3 to 8.12.0

Snyk has created this PR to upgrade acorn from 8.11.3 to 8.12.0.

See this package in npm:
acorn

See this project in Snyk:
https://app.snyk.io/org/tjenkinson/project/4c6d77a4-139f-42aa-bb73-2a6bd1331304?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -39,7 +39,7 @@
     "rollup": "^2.0.0"
   },
   "dependencies": {
-    "acorn": "^8.0.1",
+    "acorn": "^8.12.0",
     "jsesc": "^3.0.1",
     "magic-string": "^0.25.4"
   }