Clarify Wrangler esbuild update policy

[penalosa]

Summary

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• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.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

Clarified the update policy for the esbuild version used in Wrangler documentation.

• Added a section detailing the current esbuild version used by Wrangler.
• Specified that updates to esbuild may include breaking changes.
• Noted that esbuild version updates may occur with Wrangler minor version releases.

Modified Files

• src/content/docs/workers/wrangler/bundling.mdx

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Preview URL: https://f2b70e9e.preview.developers.cloudflare.com
Preview Branch URL: https://penalosa-patch-2.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/workers/wrangler/bundling/	https://penalosa-patch-2.preview.developers.cloudflare.com/workers/wrangler/bundling/
https://developers.cloudflare.com/workers/wrangler/migration/update-v3-to-v4/	https://penalosa-patch-2.preview.developers.cloudflare.com/workers/wrangler/migration/update-v3-to-v4/