Reland "Disable cxx extension test that become flaky"

This is a reland of commit b3ff583

Original change's description:
> Disable cxx extension test that become flaky
>
> Bug: 468345402
> Change-Id: I8f34fefa295e806b3fc630914d0ece6906d26593
> No-Presubmit: True
> No-Tree-Checks: True
> No-Try: True
> Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/7255780
> Commit-Queue: Natallia Harshunova <[email protected]>
> Reviewed-by: Natallia Harshunova <[email protected]>

Bug: 468345402
Change-Id: Icb91c2a528cd4cd211df343389ee9d99ac7fadda
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/7264647
Commit-Queue: Eric Leese <[email protected]>
Reviewed-by: Natallia Harshunova <[email protected]>
Reviewed-by: Piotr Paulski <[email protected]>

Author: Piotr Paulski

extensions/cxx_debugging/e2e/TestDriver.ts

@@ -43,7 +43,8 @@ function pausedReasonText(reason: string) {
   return;
 }
 
-describe('CXX Debugging Extension Test Suite', function() {
+// Started failing recently, but not at every run
+describe.skip('[crbug.com/468345402] CXX Debugging Extension Test Suite', function() {
   for (const {name, test, script} of loadTests()) {
     if (!script) {
       continue;