changelog for access fine-grained permissioning

[AdamBouhmad]

Summary

Changelog for fine-grained-permissioning at the resource-level. Please review but hold-off on merging until @AdamBouhmad confirms we're in production

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 documentation style guide has been adhered to.

[jhutchings1]

Looks good to me, thanks!

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