Python 3.10 support

[0xdbe]

In order to use tplmap with python 3.10, I had to fix some issues:

collections.mapping

Error

Exiting: module 'collections' has no attribute 'Mapping'

Fix

use collections.abc.mapping instead of collections.mapping (module change in python 3.3)

wsgiref

Error

It is not possible to install wsgiref:

error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [9 lines of output]
      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "/private/var/folders/j3/l6mjg4f13bqff0z65zgjh1f00000gq/T/pip-install-72pbyadl/wsgiref_5ce53053f9ba423aaae0584a8c7470e2/setup.py", line 5, in <module>
          import ez_setup
        File "/private/var/folders/j3/l6mjg4f13bqff0z65zgjh1f00000gq/T/pip-install-72pbyadl/wsgiref_5ce53053f9ba423aaae0584a8c7470e2/ez_setup/__init__.py", line 170
          print "Setuptools version",version,"or greater has been installed."
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

Fix

remove wsgiref as dependency because it is already been included as a standard library in Python 3