Based on: #64005 (comment)

run / restart could resolve after Runtime.runIfWaitingForDebugger() but before the async Debugger.paused output path printed the initial break ... in ... message.

This updates run / restart to wait for that initial pause output before resolving.

Target flaky tests

• test/parallel/test-debugger-run-after-quit-restart.js
  • https://github.com/nodejs/node/actions/runs/27702868250
• test/parallel/test-debugger-exceptions.js
  • https://github.com/nodejs/node/actions/runs/27882565110
• test/parallel/test-debugger-preserve-breaks.js
  • https://github.com/nodejs/node/actions/runs/27877452595

Testing

./tools/test.py -p actions parallel/test-debugger-run-restart-init parallel/test-debugger-run-after-quit-restart parallel/test-debugger-exceptions parallel/test-debugger-preserve-breaks parallel/test-debugger-restart-message
./tools/test.py -p actions -j1 --repeat 50 parallel/test-debugger-run-after-quit-restart parallel/test-debugger-exceptions

Refs: #64005, #61762