!chore: drop support for Node < 16, bump deps

Author: Justintime50

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Next Release
 
+- Drop support for Node 12, 13, 14, and 15
 - Adds `webhook_secret` and `custom_headers` properties to Typescript definitions of a Webhook
 - Removes undocumented and unmaintained `repl`
 - Bumps dependencies

audit-ci.jsonc

@@ -2,6 +2,4 @@
   "$schema": "https://github.com/IBM/audit-ci/raw/main/docs/schema.json",
   // Only fail the audit if there are critical vulnerabilities.
   "critical": true,
-  // TODO: `GHSA-67mh-4wv8-2f99` requires us to update `vite` once they bump their own dependencies to fix `esbuild`
-  "allowlist": ["GHSA-67mh-4wv8-2f99"]
 }