Update jsonpickle requirement from ~=1.0 to >=1,<3

[dependabot-preview]

Updates the requirements on jsonpickle to permit the latest version.

Changelog

Sourced from jsonpickle's changelog.

v2.0.0

• Major release: the serialized JSON format now preserves dictionary identity, which is a subtle change in the serialized format. (#351)
• Dictionary identity is now preserved. For example, if the same dictionary appears twice in a list, the reconstituted list will now contain two references to the same dictionary. (#255) (+332)

v1.5.2

• Patch release to avoid the change in behavior from the preservation of dict identity. The next release will be v2.0.0. (#351)
• This relese does not include the performance improvements from v1.5.1.
• Pandas DataFrame objects with multilevel columns are now supported. (#346) (+347)
• Numpy 1.20 is now officially supported. (#336)
• Python 3.9 is now officially supported. (+348)
• Achieved a small speedup for _get_flattener by merging type checks. (+349)

v1.5.1

• The performance of the unpickler was drastically improved by avoiding tag checks for basic Python types. (+340)
• decode() documentation improvements. (+341)
• Serialization of Pandas DataFrame objects that contain timedelta64[ns] dtypes are now supported. (+330) (#331)
• Dictionary identity is now preserved. For example, if the same dictionary appears twice in a list, the reconstituted list will now contain two references to the same dictionary. (#255) (+332)
• Unit tests were added to ensure that sklearn.tree.DecisionTreeClassifier objects are properly serialized. (#155) (+344)
• The is_reducible() utility function used by encode() is now 4x faster! Objects that provide __getstate__(), __setstate__(), and __slots__ benefit most from these improvements. (+343)
• Improved pickler flatten()/encode() performance. (+345)

v1.5.0

• Previous versions of jsonpickle with make_refs=False would emit null when encountering an object it had already seen when traversing objects. All instances of the object are now serialized. While this is arguably an improvement in the vast majority of scenarios, it is a change in behavior and is thus considered a minor-level change. (#333) (#334) (#337) (+338)
• Multiple enums are now serialized correctly with make_refs=False. (#235)

v1.4.2

• Use importlib.metadata from the stdlib on Python 3.8. (+305) (#303)
• Micro-optimize type checks to use a set for lookups. (+327)
• Documentation improvements.

v1.4.1

• Patch release for Python 3.8 importlib_metadata support. (#300)

v1.4

• Python 3.8 support. (#292)
• jsonpickle.encode now supports the standard indent and separators arguments, and passes them through to the active JSON backend library. (#183)

... (truncated)

Commits

• 6ef91df jsonpickle v2.0.0: preserve dictionary identity
• 38751c8 CHANGES.rst: the next patch release is v1.5.2
• 474f5a7 Revert "serialization: preserve dictionary identity when un/pickling"
• 4e250e6 CHANGES: prepare for v1.5.3
• c77def9 github: add sponsorshop details
• 09e02a2 tox: avoid yajl on python < 3.8
• 24cefab tox: revamp coverage setup
• fa383ac Merge pull request #349 from Theelgirl/master
• 7c4aee5 Merge branch 'master' of https://github.com/Theelgirl/jsonpickle
• 3cc726c Added changelog entry
• Additional commits viewable in compare view

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