fix(docs-page): bumps docs-mdx for code-block fix

[zchsh]

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This PR bumps the @hashicorp/platform-docs-mdx dependency in @hashicorp/react-docs-page in order to pull in a fix for a Firefox-specific manual copy-and-paste issue, as described and fixed in #503.

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• Add Asana and Preview links above.
• Conduct thorough self-review.
• Add or update tests as appropriate.
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🔍 Inspect: https://vercel.com/hashicorp/react-components/4D9kztzCMjJ8fwQgA9zJSLN7pCpj
✅ Preview: https://react-components-git-zsbump-docs-page-mdx-hashicorp.vercel.app

[changeset-bot]

🦋 Changeset detected

Latest commit: 33c8551

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hashicorp/react-docs-page	Patch

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[github-actions]

📦 Canary Packages Published

Latest commit: 33c8551

Published 1 packages

@hashicorp/react-docs-page@14.14.3-canary-20220223214927

npm install @hashicorp/react-docs-page@canary

[zchsh]

(Sorry for the noise there, meant to request on hashicorp/web-platform-packages#18 - I'll need to merge and publish that work, bump to stable docs-mdx here, and THEN this will be actually ready for review)

[zchsh]

@BRKalow this is a follow-on to hashicorp/web-platform-packages#18 👍

[BRKalow]

🚂