Update external URIs to volume-specific format

This change fixes an issue where the createTrashRequest API fails for external URIs when items are not in the external_primary volume. By updating the URI to use the correct volume name, it ensures the API works properly with all storage volumes, including SD cards

Bug: 350762768
Test: atest MediaProviderTest
Flag: EXEMPT bug fix
Change-Id: I761811fd92494835867766929c3b0c6daed9ae1c