These settings are part of the General Settings configuration page for Git Integration for Jira Cloud.
What is Jira Development Information?
Jira Development Information is a suite of new features available in Jira Software on the Cloud platform that puts commits, branches, and pull requests in context of Jira issue. These settings can be configured to "push" development information (commits, branches, and pull requests) directly into your Jira Cloud instance.
After all the settings have been configured according to your requirements, click Update to apply the changes.