[Workers] Multi Workers development

[edmundhung]

Summary

This adds a Multi Worker development guide under Development & testing to showcase the different approaches to run multiple Workers locally and when to use each approach.

Screenshots (optional)

Documentation checklist

• The documentation style guide has been adhered to.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.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.

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PR Change Summary

Added a comprehensive guide on developing with multiple Workers, detailing various approaches and configurations.

• Introduced a new guide for Multi Workers development.
• Outlined methods for running multiple Workers in single and multiple processes.
• Provided a hybrid approach for combining different Worker setups.
• Included best practices for choosing between single and multiple process approaches.

Added Files

• src/content/docs/workers/development-testing/multi-workers.mdx

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[github-actions]

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, @kodster28, @cloudflare/wrangler, @cloudflare/workers-runtime-1, @cloudflare/wrangler

[github-actions]

Preview URL: https://7ca06167.preview.developers.cloudflare.com
Preview Branch URL: https://edmundhung-multi-workers-development.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/workers/development-testing/multi-workers/	https://edmundhung-multi-workers-development.preview.developers.cloudflare.com/workers/development-testing/multi-workers/

[github-actions]

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