chore: upgrading storybook to 8.1.4

[georgewrmarshall]

Description

Upgrades storybook from 8.1.2 to 8.1.4 (*ignore branch name)

Related issues

Fixes: N/A

Manual testing steps

1. Go to the storybook build of this PR
2. Make sure stories and documentation are rendering correctly

Screenshots/Recordings

Before

https://github.com/MetaMask/design-tokens/assets/8112138/6863f0d4-5c8c-43d0-9c7e-d33c8c2a2fb6

After

https://github.com/MetaMask/design-tokens/assets/8112138/5aa33635-0500-48f5-9e45-8deba7ff02f9

Pre-merge author checklist

• [x] I’ve followed MetaMask Coding Standards.
• [x] I've clearly explained what problem this PR is solving and how it is solved.
• [x] I've linked related issues
• [x] I've included manual testing steps
• [x] I've included screenshots/recordings if applicable
• [x] I’ve included tests if applicable
• [x] I’ve documented my code using JSDoc format if applicable
• [x] 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.

[metamaskbot]

Builds ready [b906859]

Storybook: Storybook