Andrey Lushnikov b09ea69024
chore(docker): address docker offline comments (#17377)
This patch:
- Removes all `process.exit(1)` from `docker.ts` and instead throws
  errors.
- Drops the `npx playwright docker test` command. We agreed to
  engage docker when `PLAYWRIGHT_DOCKER` environment variable
  is set.
- Introduces hidden `npx playwright docker status` command that
  dumps a JSON with docker status:
  ```sh
  aslushnikov:~/prog/playwright$ npx playwright docker status
  {
    "dockerEngineRunning": true,
    "imageName": "playwright:local-1.27.0-next-focal",
    "imageIsPulled": true,
"containerWSEndpoing":
"ws://127.0.0.1:55077/eafeb84c-571b-4d12-ac51-f6a2b43e9155",
"containerVNCEndpoint":
"http://127.0.0.1:55076/?path=fb6d4add-9adf-4c3c-b335-893bdc235cd7&resize=scale&autoconnect=1"
  }
  ```
2022-09-15 15:48:12 -07:00
..