Update dash requirement from ~=2.15 to ~=3.1 in the production-dependencies group across 1 directory

[dependabot]

Updates the requirements on dash to permit the latest version.
Updates dash to 3.1.1

Release notes

Sourced from dash's releases.

Dash v3.1.1

Fixed

#3351 Fix multi-page app with suppress_callback_exceptions=True

Changelog

Sourced from dash's changelog.

[3.1.1] - 2025-06-29

Fixed

#3351 Fix multi-page app with suppress_callback_exceptions=True

[3.1.0] - 2025-06-27

Fixed

• #3341 Fixed query string parsing regression introduced in 2.18.2 where values containing unencoded & characters were being truncated. #3106
• #3279 Fix an issue where persisted values were incorrectly pruned when updated via callback. Now, callback returned values are correctly stored in the persistence storage. Fix #2678
• #3298 Fix dev_only resources filtering.
• #3315 Fix pages module is package check.
• #3319 Fix issue where ExternalWrapper would remove props from the parent component, now there is a temp that is passed to check if it should be removed on unmount.
• #3108 Fix layout as list for pages.
• #1906 Make graph height more responsive.
• #2927 Fix unexpected behaviour of the cursor in dcc.Input
• #3344 Fix dcc.Loading target_components with * prop.

Added

• #3294 Added the ability to pass allow_optional to Input and State to allow callbacks to work even if these components are not in the dash layout.
• #3077 Add new parameter assets_path_ignore to dash.Dash(). Closes #3076
• #3202 expose the closeOnSelect option in dropdown component
• #3089 adding support for async callbacks and page layouts, install with pip install dash[async].

Changed

• #3303 Improve flatten_grouping performance (callback with dictionary output/input)
• #3304 Speed up function _operation by 80%
• #3323 Make Dash instances WSGI compliant, can now call gunicorn on the dash app itself.

Updated

• #3333 Update flask max version to <3.2

[3.0.4] - 2025-04-24

Fixed

• #3278 Fix loading selector with children starting at the same digit. Fix #3276
• #3280 Remove flask typing import not available in earlier versions.
• #3284 Fix component as props having the same key when used in the same container.
• #3287 Fix typing component generation & explicitize_args.
• #3282 Fix incorrect cancellation of pattern matched long callbacks.
• #3289 Fixed issue with debugTitle where status doesnt exist and allow_duplicates to ignore the hash for prop loading in the target.
• #3281 Use routes_pathname_prefix for internal Alive URL in Dash app. Fix #3270

[3.0.3] - 2025-04-14

Fixed

• #3264 Fixed an issue where moving components inside of children would not update the setProps path, leading to hashes being incorrect
• #3265 Fixed issue where the resize of graphs was cancelling others

... (truncated)

Commits

• b465f06 Merge pull request #3355 from plotly/master-3.1.1
• a4e8acc Merge branch 'dev' into master-3.1.1
• 6b21ec9 Merge pull request #3354 from plotly/version-3.1.1
• b8731b6 Version 3.1.1
• 45987bc Merge pull request #3352 from plotly/async-alone
• cff30cb run async test in separate step & flaky cbsc001
• f531328 Merge pull request #3351 from petar-qb/fix/multi-page-app-with-suppress-callb...
• e578540 Fix the bug
• 6adc7e2 3.1.0 build artifacts
• 476c452 Merge pull request #3346 from plotly/master-3.1.0
• Additional commits viewable in compare view

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