Update tox requirement from <4.1,>=3.20 to >=3.20,<4.2

[dependabot[bot]]

Updates the requirements on tox to permit the latest version.

Changelog

Sourced from tox's changelog.

v4.1.1 (2022-12-29)

Bugfixes - 4.1.1

- Fix logging error with emoji in git branch name. (:issue:`2768`)
Improved Documentation - 4.1.1

• Add faq entry about re-use of environments - by :user:jugmac00. (:issue:2788)

v4.1.0 (2022-12-29)

Features - 4.1.0

- ``-f`` can be used multiple times and on hyphenated factors (e.g. ``-f py311-django -f py39``) - by :user:`sirosen`. (:issue:`2766`)
Improved Documentation - 4.1.0

• Fix a grammatical typo in docs/user_guide.rst. (:issue:2787)

v4.0.19 (2022-12-28)

Bugfixes - 4.0.19

- Create temp_dir if not exists - by :user:`q0w`. (:issue:`2770`)
v4.0.18 (2022-12-26)
Bugfixes - 4.0.18

• Strip leading and trailing whitespace when parsing elements in requirement files - by :user:gaborbernat. (:issue:2773)

v4.0.17 (2022-12-25)

Features - 4.0.17

- Suppress a report output when verbosity = 0. (:issue:`2697`)
Bugfixes - 4.0.17

• Fix --sdistonly behaviour. (:issue:2653)

... (truncated)

Commits

• 1d739a2 release 4.1.1
• b49d118 Fix logging error with emoji in git branch name. (#2790)
• c838192 Add faq entry about re-use of environments (#2789)
• e0aed50 release 4.1.0
• 6cdd99c Improved factor selection to allow multiple uses of -f for "OR" and to allo...
• 6f056ca Update user_guide.rst (#2787)
• ef323df docs(config): Fix minor typo (#2785)
• 0580121 release 4.0.19
• 39dd2b6 Create temp_dir if not exists (#2781)
• c850edf Fix pointer to legacy changelog (#2782)
• Additional commits viewable in compare view

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