chore(deps): update dependency isort to v5.9.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
isort (source, changelog)	==5.8.0 -> ==5.9.0

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Release Notes

pycqa/isort

v5.9.0

Compare Source

• Improved CLI startup time.
  • Implemented #​1697: Provisional support for PEP 582: skip __pypackages__ directories by default.
  • Implemented #​1705: More intuitive handling of isort:skip_file comments on streams.
  • Implemented #​1737: Support for using action comments to avoid adding imports to individual files.
  • Implemented #​1750: Ability to customize output format lines.
  • Implemented #​1732: Support for custom sort functions.
  • Implemented #​1722: Improved behavior for running isort in atomic mode over Cython source files.
  • Fixed (Fix bug regarding multiline docstrings PyCQA/isort#1695): added imports being added to doc string in some cases.
  • Fixed (Line break and tab indentation makes wrong fix PyCQA/isort#1714): in rare cases line continuation combined with tabs can output invalid code.
  • Fixed (isort ignores reverse_sort when force_sort_within_sections is true PyCQA/isort#1726): isort ignores reverse_sort when force_sort_within_sections is true.
  • Fixed #​1741: comments in hanging indent modes can lead to invalid code.
  • Fixed #​1744: repeat noqa comments dropped when * import and non * imports exist from the same package.
  • Fixed #​1721: repeat noqa comments on separate from lines with force-single-line set, sometimes get dropped.

Goal Zero (Tickets related to aspirational goal of achieving 0 regressions for remaining 5.0.0 lifespan):

• Implemented #​1394: 100% branch coverage (in addition to line coverage) enforced.
• Implemented #​1751: Strict typing enforcement (turned on mypy strict mode).

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