fix: beta workflow - remove incorrect push that prevents PR creation (#6709)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: louislam <1336778+louislam@users.noreply.github.com>

extra/beta/update-version.js

@@ -58,8 +58,8 @@ function commit(version) {
         throw new Error("commit error");
     }
 
-    res = childProcess.spawnSync("git", ["push", "origin", "master"]);
-    console.log(res.stdout.toString().trim());
+    // Note: Push is handled by gh pr create in the release script
+    // No need to push here as we're on a release branch, not master
 }
 
 /**