feat: include built package version in error logs

I'm working on upgrading a lot of packages to node 24 and there are many failures in native modules. Looking at logs alone it's hard to spot which package versions are failing to build. node-gyp prints debug info about node, npm, and node-gyp but not the package that is currently being built.

It doesn't look like node-gyp reads package.json so I opted to read npm_package_ env vars, which is similar to the npm_config_ env vars node-gyp already reads.

Author: everett1992

bin/node-gyp.js

@@ -125,6 +125,15 @@ function errorMessage () {
   log.error('cwd', process.cwd())
   log.error('node -v', process.version)
   log.error('node-gyp -v', 'v' + prog.package.version)
+
+  // print the npm package version
+  for (const env of ['npm_package_name', 'npm_package_version']) {
+    const value = process.env[env]
+    if (value != null) {
+      log.error(`$${env}`, value)
+    }
+  }
+
 }
 
 function issueMessage () {