Array fieldtype labels are required despite being shown as optional

[petemolinero]

Bug description

If I create an Array field type, choose "Keyed" UI mode, and omit labels, the settings cannot be saved. If I then fill out the labels, I can save it.

How to reproduce

1. Create an array fieldtype in your blueprint
2. Choose the Keyed UI mode
3. Enter keys but not labels
4. Observe the error

Logs

No response

Environment

Environment
Application Name: --------
Laravel Version: 11.16.0
PHP Version: 8.2.21
Composer Version: 2.6.5
Environment: development
Debug Mode: ENABLED
URL: --------
Maintenance Mode: OFF
Timezone: UTC
Locale: en

Cache
Config: NOT CACHED
Events: NOT CACHED
Routes: NOT CACHED
Views: CACHED

Drivers
Broadcasting: log
Cache: file
Database: mysql
Logs: stack / single
Mail: smtp
Queue: sync
Session: file

Statamic
Addons: 2
Sites: 1
Stache Watcher: Disabled
Static Caching: Disabled
Version: 5.19.0 PRO

Statamic Addons
jonassiewertsen/statamic-documentation: 2.0.0
statamic/eloquent-driver: 4.9.0

Statamic Eloquent Driver
Asset Containers: file
Assets: eloquent
Blueprints: file
Collection Trees: eloquent
Collections: file
Entries: eloquent
Forms: eloquent
Global Sets: eloquent
Global Variables: eloquent
Navigation Trees: eloquent
Navigations: eloquent
Revisions: eloquent
Taxonomies: file
Terms: eloquent
Tokens: file

Installation

Existing Laravel app

Additional details

No response

[duncanmcclean]

Duplicate of #10323 (options on Button Groups work the same way).