Bump keyring from 25.3.0 to 25.4.1

[dependabot[bot]]

Bumps keyring from 25.3.0 to 25.4.1.

Changelog

Sourced from keyring's changelog.

v25.4.1

Bugfixes

• Fixed ValueError for AnonymousCredentials in CLI. (#694)

v25.4.0

Features

• Refined type spec and interfaces on credential objects. Introduced AnonymousCredential to model a secret without a username. (#689)

Commits

• 24ec25d Finalize
• 5bc7149 Merge pull request #695 from ffissore/anon-fix
• e9f7851 Add another test to cover Credential._vars.
• b75609e Add news fragment.
• ef69469 Move class-specific behaviors into the classes.
• c5c06ce Merge branch 'test/694' into anon-fix
• 41892e7 Add test for get_credential with no username.
• bd2a372 Not accessing credentials.username if credentials is an instance of `Anon...
• 0041050 Finalize
• 98f027b Merge pull request #691 from Avasam/add-typed-libraries-to-type-checking
• Additional commits viewable in compare view

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