Breaking changes
* Remove Access-Control-Expose-Headers response header by tlinhart in https://github.com/snok/asgi-correlation-id/pull/67
This PR removes `Access-Control-Expose-Headers` CORS headers from outgoing responses. See [this section](https://github.com/snok/asgi-correlation-id#cors) of the README for how to (re)configure your CORS middleware, if needed.
* Change the default value of `update_request_header` by sondrelg in https://github.com/snok/asgi-correlation-id/pull/68
This change switches the default value of `update_request_header` to `True`, which seems like a more sensible default.
**Full Changelog**: https://github.com/snok/asgi-correlation-id/compare/v3.3.0...v4.0.0