Update tox requirement from >= 3.9.0 to >=4.25.0

[dependabot]

Updates the requirements on tox to permit the latest version.

Release notes

Sourced from tox's releases.

4.25.0

What's Changed

• Tests: Adjust expected exception message for Python 3.14.0a6 by @​hroncok in tox-dev/tox#3500
• feat(config): Allow ranges in envlist by @​mimre25 in tox-dev/tox#3503

Full Changelog: tox-dev/tox@4.24.2...4.25.0

Changelog

Sourced from tox's changelog.

Features - 4.25.0

• Add support for number ranges in generative environments, more details :ref:here <generative-environment-list>. - by :user:mimre25 (:issue:3502)

Bugfixes - 4.25.0

• Make tox tests pass with Python 3.14.0a6 - by :user:hroncok (:issue:3500)

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v4.24.2 (2025-03-07)

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Bugfixes - 4.24.2

• multiple source_type supports for the same filename. Like pyproject.toml can be load by both TomlPyProject & LegacyToml (:issue:3117)
• Support set_env = { file = "conf{/}local.env"} for TOML format - by :user:juditnovak. (:issue:3474)
• fix example on the docs (:issue:3480)
• • --parallel-no-spinner now respects max CPU set by --parallel N (:issue:3495)

Improved Documentation - 4.24.2

• Updates the documentation for os.environ['KEY'] when the variable does not exist - by :user:jugmac00. (:issue:3456)

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v4.24.1 (2025-01-21)

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Misc - 4.24.1

• :issue:3426

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v4.24.0 (2025-01-21)

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Features - 4.24.0

• Add a schema command to produce a JSON Schema for tox and the current plugins.

  • by :user:henryiii (:issue:3446)

... (truncated)

Commits

• 3d35559 release 4.25.0
• 0e6b4ad feat(config): Allow ranges in envlist (#3503)
• 5a67ae1 [pre-commit.ci] pre-commit autoupdate (#3505)
• f5f5cb1 [pre-commit.ci] pre-commit autoupdate (#3499)
• beba4be Tests: Adjust expected exception message for Python 3.14.0a6 (#3500)
• 794e6be [pre-commit.ci] pre-commit autoupdate (#3496)
• 05835bf release 4.24.2
• 4852262 TOML set_env file support (#3478)
• 1dac11f fix: Respect --parallel N with --parallel-no-spinner (#3495)
• fd44904 [pre-commit.ci] pre-commit autoupdate (#3488)
• Additional commits viewable in compare view