Bump marshmallow from 3.26.1 to 4.1.0

[dependabot]

Bumps marshmallow from 3.26.1 to 4.1.0.

Changelog

Sourced from marshmallow's changelog.

4.1.0 (2025-11-01) ++++++++++++++++++

Other changes:

• Add __len__ implementation to missing so that it can be used with validate.Length <marshmallow.validate.Length> (:pr:2861). Thanks :user:agentgodzilla for the PR.
• Drop support for Python 3.9 (:pr:2363).
• Test against Python 3.14.

4.0.1 (2025-08-28) ++++++++++++++++++

Bug fixes:

• Fix wildcard import of from marshmallow import * (:pr:2823). Thanks :user:Florian-Laport for the PR.

4.0.0 (2025-04-16)

---

See :ref:upgrading_4_0 for a guide on updating your code.

Features:

• Typing: Add types to all Field <marshmallow.fields.Field> constructor kwargs (:issue:2285). Thanks :user:navignaw for the suggestion.
• DateTime <marshmallow.fields.DateTime>, Date <marshmallow.fields.Date>, Time <marshmallow.fields.Time>, TimeDelta <marshmallow.fields.TimeDelta>, and Enum <marshmallow.fields.Enum> accept their internal value types as valid input (:issue:1415). Thanks :user:bitdancer for the suggestion.
• @validates <marshmallow.validates> accepts multiple field names (:issue:1960). Backwards-incompatible: Decorated methods now receive data_key as a keyword argument. Thanks :user:dpriskorn for the suggestion and :user:dharani7998 for the PR.

Other changes:

• Typing: Field <marshmallow.fields.Field> is now a generic type with a type argument for the internal value type.
• marshmallow.fields.UUID no longer subclasses marshmallow.fields.String.
• marshmallow.Schema.load no longer silently fails to call schema validators when a generator is passed (:issue:1898). The typing of data is also updated to be more accurate. Thanks :user:ziplokk1 for reporting.
• Backwards-incompatible: Use datetime.date.fromisoformat, datetime.time.fromisoformat, and datetime.datetime.fromisoformat from the standard library to deserialize dates, times and datetimes (:pr:2078). As a consequence of this change:
  • Time with time offsets are now supported.
  • YYYY-MM-DD is now accepted as a datetime and deserialized as naive 00:00 AM.
  • from_iso_date, from_iso_time and from_iso_datetime are removed from marshmallow.utils.

... (truncated)

Commits

• 441213d Bump version and update changelog
• 2b84b56 (fix) missing constant with len validation (#2861)
• fc87262 Test against Python 3.14 (#2864)
• 2a5e2e1 Update CHANGELOG
• d861be7 Merge pull request #2863 from marshmallow-code/drop_python_39
• 22288b6 Fix ruff issues
• 1d8fd27 Drop Python 3.9
• 966caf9 [pre-commit.ci] pre-commit autoupdate
• feb2244 Merge pull request #2857 from marshmallow-code/disable_RUF043
• 23ee363 Disable RUF043 in tests: allow metacharacters in match patterns
• Additional commits viewable in compare view

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[dependabot]

Superseded by #5527.