Bump asusrouter to 1.21.1

[Vaskivskyi]

Proposed change

Bump asusrouter dependency for asuswrt integration. The update contains a bug fix for the issue with some recent FW versions, which prevented proper parsing of the client list.

No other changes related to the integration. No breaking changes.

Links: Release notes

Currently, the integration will show 0 clients and an error in the log

With this updated dependency:

I would appreciate tagging this PR for the next minor release, so that affected users can get the fix as fast as possible.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• I understand the code I am submitting and can explain how it works.
• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

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• I have reviewed two other open pull requests in this repository.

[home-assistant]

Hey there @kennedyshead, @ollo69, mind taking a look at this pull request as it has been labeled with an integration (asuswrt) you are listed as a code owner for? Thanks!

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[Copilot]

Pull request overview

This PR bumps the asusrouter dependency from version 1.21.0 to 1.21.1 for the asuswrt integration. The update addresses a bug in client list parsing that affects routers running recent firmware versions, which was causing the integration to display 0 clients and log errors.

Key Changes:

• Updated asusrouter dependency version from 1.21.0 to 1.21.1 across all requirement files
• No code changes to the integration itself
• No breaking changes

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
requirements_test_all.txt	Updated asusrouter test dependency to version 1.21.1
requirements_all.txt	Updated asusrouter production dependency to version 1.21.1
homeassistant/components/asuswrt/manifest.json	Updated asusrouter requirement in manifest to version 1.21.1

Review Summary: The changes are clean and consistent. All three files correctly reference the new version 1.21.1, and no references to the old version remain in the codebase. This is a straightforward dependency bump with no code changes, appropriate for a bugfix release.

[MS2620]

The update resolves a client list parsing bug affecting routers running recent firmware versions, which previously caused the integration to display zero clients and generate errors. This is a straightforward but important fix that will benefit all current users experiencing these issues.