Previously, terminal reporters consulted `process.stdout.isTTY`. Now it
is possible to control the tty behavior:
- `PLAYWRIGHT_FORCE_TTY=0` or `PLAYWRIGHT_FORCE_TTY=false` to disable
TTY;
- `PLAYWRIGHT_FORCE_TTY=1` or `PLAYWRIGHT_FORCE_TTY=true` to enable TTY,
defaults to 100 columns when real columns are unavailable;
- `PLAYWRIGHT_FORCE_TTY=<number>` to force enable TTY and set the
columns.
Fixes#29422.
89cdf3d56e