A new custom widget has to be created: it will be a generic "AuthProviderRequester" (name may change) that will be parameterised to take the provider's name.

This widget will be used in the workflow's input data schema to specify each and every mandatory providers for which the user has to be logged in for the execution to be successful.

When the workflow is executed, this widget is not displayed in the UI; the frontend plugin will display the login pop-ups for each provider declared by using the custom widget.

Success criteria - successfuly deploy workflow custom-auth-create-branch and run the workflow
Github auth popup should show after clicking on execute and branch should be created in the name of the user who ran the workflow
It should ask for auth only the first time or after cookies are cleared.