[e2e] Skip flaky code-splitting test on Mac
[e2e] Skip flaky code-splitting test on Mac

Bug: chrome:1218732
Change-Id: I2ac014d4b766a49928efd34cda303172613a42a8
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2955359
Auto-Submit: Kim-Anh Tran <a72f38a79b5fac6811022b8a7fb84830d856c9c9@chromium.org>
Commit-Queue: Benedikt Meurer <024a1e0af501338d11c3b837c6193d11c140d792@chromium.org>
Reviewed-by: Benedikt Meurer <024a1e0af501338d11c3b837c6193d11c140d792@chromium.org>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend