Update persistState configuration format

[roerohan]

Summary

persistState accepts a { path: '...' } object and not a string.

type PersistState = boolean | {
  path: string;
};

Screenshots (optional)

Documentation checklist

• [ ] Is there a changelog entry (guidelines)? If you don't add one for something awesome and new (however small) — how will our customers find out? Changelogs are automatically posted to RSS feeds, the Discord, and X.
• [ ] The change adheres to the documentation style guide.
• [ ] If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• [ ] Files which have changed name or location have been allocated redirects.

[github-actions[bot]]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/docs/workers/	@cloudflare/workers-docs, @GregBrimble, @irvinebroque, @mikenomitch, @korinne, @WalshyDev, @cloudflare/deploy-config, @cloudflare/pcx-technical-writing, @cloudflare/wrangler, @cloudflare/workers-runtime-1, @mattietk

[github-actions[bot]]

Preview URL: https://b6cf453e.preview.developers.cloudflare.com Preview Branch URL: https://persist-state-path.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/workers/development-testing/local-data/	https://persist-state-path.preview.developers.cloudflare.com/workers/development-testing/local-data/