src/meta-openembedded:python3-waitress: upgrade 2.0.0 -> 2.1.0

Changelog:
=========
Python Version Support
----------------------
- Python 3.6 is no longer supported by Waitress
- Python 3.10 is fully supported by Waitress

Bugfix
-------
- "wsgi.file_wrapper" now sets the "seekable", "seek", and "tell"
  attributes from the underlying file if the underlying file is seekable. This
  allows WSGI middleware to implement things like range requests for example

  See Pylons/waitress#359 and
  Pylons/waitress#363

- In Python 3 "OSError" is no longer subscriptable, this caused failures on
  Windows attempting to loop to find an socket that would work for use in the
  trigger.

  See Pylons/waitress#361

- Fixed an issue whereby "BytesIO" objects were not properly closed, and
  thereby would not get cleaned up until garbage collection would get around to
  it.

  This led to potential for random memory spikes/memory issues, see
  Pylons/waitress#358 and
  Pylons/waitress#357 .

Features
--------
- When the WSGI app starts sending data to the output buffer, we now attempt to
  send data directly to the socket. This avoids needing to wake up the main
  thread to start sending data. Allowing faster transmission of the first byte.
  See Pylons/waitress#364

- Add REQUEST_URI to the WSGI environment.

  REQUEST_URI is similar to "request_uri" in nginx. It is a string that
  contains the request path before separating the query string and
  decoding "%"-escaped characters.

Signed-off-by: Wang Mingyu <[email protected]>
Signed-off-by: Khem Raj <[email protected]>
Signed-off-by: Trevor Gamblin <[email protected]>