Merge pull request #229910 from helsinki-systems/nodejs-14-insecure

nodejs_14: is EOL on 2023-04-30, nodejs_16: goes EOL during 23.05 release

pkgs/development/web/nodejs/nodejs.nix

···
       maintainers = with maintainers; [ goibhniu gilligan cko marsam ];
       platforms = platforms.linux ++ platforms.darwin;
       mainProgram = "node";
-      knownVulnerabilities = optional (versionOlder version "14") "This NodeJS release has reached its end of life. See https://nodejs.org/en/about/releases/.";
+      knownVulnerabilities = optional (versionOlder version "18") "This NodeJS release has reached its end of life. See https://nodejs.org/en/about/releases/.";
     };
 
     passthru.python = python; # to ensure nodeEnv uses the same version