The traceback stops just after ADK tries to launch the Cloud Run deployment, which it does by spawning an external command (essentially gcloud run deploy …).
On Windows a [WinError 2] The system cannot find the file specified means the operating system could not locate the executable that ADK asked it to start. In practice that is almost always one of three binaries: gcloud, docker, or pack.

# re-run with full verbosity to see the exact command ADK is invoking
adk deploy cloud_run --verbosity debug \
  --project=%GOOGLE_CLOUD_PROJECT% \
  --region=%GOOGLE_CLOUD_LOCATION% \
  --service_name=%SERVICE_NAME% \
  --app_name=%APP_NAME% \
  --with_ui %AGENT_PATH%