[builtins] Fix typo in tools/builtins-pgo/generate.py

Bug: v8:10470
No-Tree-Checks: true
No-Try: true
Change-Id: Ic59bd42221776248dfc1bde35c1299aa4d1d3b0c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3861049
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82763}

tools/builtins-pgo/generate.py

@@ -51,7 +51,7 @@ def try_start_goma():
 
 def build_d8(path, gn_args):
   if not path.exists():
-    path.mkdir(parents=True, exists_ok=True)
+    path.mkdir(parents=True, exist_ok=True)
   with (path / "args.gn").open("w") as f:
     f.write(gn_args)
   run(["gn", "gen", path])