docs: add artifact studio login to component updates (#8327)

* docs: add artifact studio login to component updates

* ci: auto-formatting prettier issues

Author: addetz

docs/docs-content/release-notes/release-notes.md

@@ -15,6 +15,11 @@ tags: ["release-notes"]
 
 The following components have been updated for Palette version 4.7.20 - 4.7.21.
 
+### Improvements
+
+- Access to [Artifact Studio](../downloads/artifact-studio.md) now requires authentication. To gain access, contact your
+  Spectro Cloud representative or [open a support ticket](https://support.spectrocloud.com/).
+
 ### Packs
 
 | Pack Name              | Layer      | Non-FIPS           | FIPS               | New Version |