Repo: Update both version fields in package-lock.json

`package-lock.json` versions 2 & 3 keep `version` in two fields - a top-level
`version` one and a deep `packages[ "" ].version` one. Update both.

Author: mgol

lib/repo.js

@@ -149,6 +149,9 @@ Release.define( {
 		console.log( "Updating " + fileName + "..." );
 		var json = Release._readJSON( fileName );
 		json.version = version;
+		if ( json?.packages[ "" ]?.version ) {
+			json.packages[ "" ].version = version;
+		}
 		Release._writeJSON( fileName, json );
 	},