User responsible for handling access requests (with ManageFilePermissions) does not get notifications for this

[PaulBoon]

User responsible for handling access requests (with ManageFilePermissions) does not get notifications for this.

This was traced down to the sendRequestFileAccessNotification function in src/main/java/edu/harvard/iq/dataverse/FileDownloadServiceBean.java. Here Permission.ManageDatasetPermissions is being used to find users that need to get the notification, this should be Permission.ManageFilePermissions

To reproduce this you need to do an request on a restricted file for which the 'owner' has the ManageFilePermissions and not the ManageDatasetPermissions.
Note that the split-up is introduced in this PR: #8174

[PaulBoon]

@qqmyers The code is here:

dataverse/src/main/java/edu/harvard/iq/dataverse/FileDownloadServiceBean.java

Line 576 in 9fc757f

permissionService.getUsersWithPermissionOn(Permission.ManageDatasetPermissions, dataset).stream().forEach((au) -> {