chore(deps): update dependency decorator to v5

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
decorator	==4.4.2 -> ==5.1.1

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Release Notes

micheles/decorator (decorator)

v5.1.1

Sangwoo Shim contributed a fix so that cythonized functions can be decorated.
Brian McFee pointed out an issue in the decorator_apply example and
Wim Glenn pointed out that the "fix" in version 5.1 broke
decorator.contextmanager even more. Both issues are now solved.

v5.1.0

Added a function decoratorx using the FunctionMaker and thus
preserving the signature of __code__ objects. Then fixed three small bugs:

• Sphinx was printing a few warnings when building the documentation, as
  signaled by Tomasz Kłoczko
• functions decorated with decorator.contextmanager were one-shot,
  as discovered by Alex Pizarro.
• decorator.decorator was not passing the kwsyntax argument.

v5.0.9

Compare Source

Fixed a test breaking PyPy. Restored support for Sphinx.

v5.0.8

Compare Source

Made the decorator module more robust when decorating builtin functions
lacking dunder attributes, like dict.__setitem__.

v5.0.7

Compare Source

The decorator module was not passing correctly the defaults inside the
*args tuple, thanks to Dan Shult for the fix. Also fixed some misspellings
in the documentation and integrated codespell in the CI, thanks to
Christian Clauss.

v5.0.6

Compare Source

The decorator module was not copying the module attribute anymore.
Thanks to Nikolay Markov for the notice.

v5.0.5

Compare Source

Dropped support for Python < 3.5 with a substantial simplification of
the code base (now building a decorator does not require calling "exec").
Added a way to mimic functools.wraps-generated decorators.
Ported the Continuous Integration from Travis to GitHub.

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