Summary

On Jira Cloud Audit logs you may notice JIRA as the author for "atlassian-addons-project-access" project role modification.

Jira project access for Atlassian add-ons

The project role "atlassian-addons-project-access" is used by the application installed on your Jira Cloud instance to access the project. Whenever a new application is installed, Jira adds application permissions to the project, and these entries are recorded with JIRA as the agent performing the project role change.
Refer to this link for more details on the Atlassian addon project role.