message: Fix PR - node 12 compat in gen_version.js
  Node 12 doesn't support `??` operator yet.
diff: @@ -23,7 +23,7 @@ const pkgName = pkg.name;
  // For test builds, the package version starts with 0.0.0. Code need to know the original version.
  // CI build create one with original version prefix is emitted into the environment for code logic to be used here.
  // See tools/pipelines/scripts/build-version.js
  -const pkgVersion = process.env.SETVERSION_CODEVERSION ?? pkg.version;
  +const pkgVersion = process.env.SETVERSION_CODEVERSION ? process.env.SETVERSION_CODEVERSION : pkg.version;
  // Make sure the output directory exists
  if (!fs.existsSync(outDir)) {
  