Bump jsonpickle from 2.0.0 to 2.1.0 in /dependencies/python

[dependabot]

Bumps jsonpickle from 2.0.0 to 2.1.0.

Changelog

Sourced from jsonpickle's changelog.

v2.1.0

* Python 3.10 is now officially supported. (+376)
* Benchmarks were added to aid in optimization efforts.  ([#350](https://github.com/jsonpickle/jsonpickle/issues/350)) (+352)
* ``is_reducible()`` was sped up by ~80%.  (+353) (+354)
* ``_restore_tags()`` was sped up by ~100%. Unpickling items
  with a lot of tuples and sets will benefit most. Python 2 users
  and users deserializing pickles from jsonpickle <= 0.9.6 may see
  a slight performance decrease if using a lot of bytes, ref,
  and/or repr objects. (+354)
* ``is_iterator()`` was sped up by ~20% by removing an unnecessary
  variable assignment. (+354)
* ``jsonpickle.decode`` has a new option, ``v1_decode`` to assist in
  decoding objects created in jsonpickle version 1. ([#364](https://github.com/jsonpickle/jsonpickle/issues/364))
* The ``encode()`` documentation has been updated to help sklearn users.
* ``demjson`` has been removed from the test suite. (+374)
* ``SQLALchemy<1.2`` is no longer being tested by jsonpickle.
  Users of sqlalchemy + jsonpickle can always use 1.2 or 1.3.
  When jsonpickle v3 is released we will add SQLAlchemy 1.4 to
  the test suite alongside removal of support for Python 3.5 and earlier.

Commits

• 1594d3f Merge pull request #378 from jsonpickle/fix-test-warnings
• 1591055 Add missing dtypes
• 66649f0 Fix test warnings
• 2902ddb Finish removing text
• ac7da53 Remove text
• c3b9ab0 Update index.rst
• 22354e9 CHANGES: update release notes for jsonpickle v2.1.0
• a83d3ae Merge pull request #376 from jsonpickle/add-3.10-support
• 88f4610 Adjust SQLAlchemy versions tested
• 14dba93 Adjust SQLAlchemy versions tested
• Additional commits viewable in compare view

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