Update to latest Node 14 version for security fixes

This fixes a potential issue with certificate validation in Node.js
(CVEs CVE-2021-44531 and CVE-2021-44532) which could potentially cause
issues with name-constrained intermediates. It's unlikely this would be
a serious problem in practice, but it's well worth fixing.

Author: pimterry

package.json

@@ -170,7 +170,7 @@
         }
       },
       "node": {
-        "version": "14.17.0",
+        "version": "14.18.3",
         "targets": [
           "win32-x64",
           "linux-x64",