Sync connector admin settings form h4 should be h3

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: Master
• Component/s: Sync Connector
• Labels: None
• Epic Link: Headings
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/70420

h4 should be h3

Please see form hierarchy at https://clayui.com/docs/components/forms/forms-hierarchy.html