www/node: Update to 18.12.1

The following CVEs are fixed in this release:

• CVE-2022-3602: X.509 Email Address 4-byte Buffer Overflow
• CVE-2022-3786: X.509 Email Address Variable Length Buffer Overflow
• CVE-2022-43548: DNS rebinding in --inspect via invalid octal IP address

Changelog: https://github.com/nodejs/node/releases/tag/v18.12.1