Specify name for publish git commands

.ado/publish.js

@@ -28,6 +28,9 @@ function doPublish() {
   const tempPublishBranch = `publish-temp-${Date.now()}`;
   exec(`git checkout -b ${tempPublishBranch}`);
 
+  exec(`git config --global user.email "30809111+acoates-ms@users.noreply.github.com"`);
+  exec(`git config --global user.name "React-Native Build"`);
+
   exec(`git add ${pkgJsonPath}`);
   exec(`git commit -m "Applying package update to ${releaseVersion}`);
   exec(`git tag v${releaseVersion}`);