py310-multidict: update to 6.0.2.

6.0.2 (2022-01-24)
==================

Bugfixes
--------

- Revert :issue:`644`, restore type annotations to as-of 5.2.0 version. (:issue:`688`)

6.0.1 (2022-01-23)
==================

Bugfixes
--------

- Restored back ``MultiDict``, ``CIMultiDict``, ``MultiDictProxy``, and
  ``CIMutiDictProxy`` generic type arguments; they are parameterized by value type, but the
  key type is fixed by container class.

  ``MultiDict[int]`` means ``MutableMultiMapping[str, int]``. The key type of
  ``MultiDict`` is always ``str``, while all str-like keys are accepted by API and
  converted to ``str`` internally.

  The same is true for ``CIMultiDict[int]`` which means ``MutableMultiMapping[istr,
  int]``. str-like keys are accepted but converted to ``istr`` internally. (:issue:`682`)

(wiz)