I'm trying to write a Flow that gets a list of emails from the Finance Managers list to send an email to. When I get to the HTTP Request to query the Finance Managers list, it throws a 401 error- access denied. The list I'm querying is of course on SharePoint Online (O365). Do I need to do something like creating an app step and authorizing the Flow like I had to do with SharePoint Designer workflows? If so, how do I do that with a Power Automate Flow?