fix(deps): @keystonehq/metamask-airgapped-keyring@^0.13.1->^0.14.1

[legobeat]

Description

Bump @keystonehq/metamask-airgapped-kayring, removing dependency on legacy @metamask/obs-store.

Related issues

Manual testing steps

• Test basic HW wallet flow with Keystone wallet

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[socket-security]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher

🚮 Removed packages: npm/@keystonehq/metamask-airgapped-keyring@0.13.1, npm/@metamask/obs-store@7.0.0, npm/@metamask/safe-event-emitter@2.0.0

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