License information for apps is incorrect

[jdaviescoates]

Eg. it tells me that Brasero is Proprietary when in fact it is GPL2.

It also says Brasero has never been updated, which is also clearly incorrect.

I've seen these issues with others apps too.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-software (not installed)
Uname: Linux 5.7.0-050700rc5-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Jul 5 12:34:18 2020
InstallationDate: Installed on 2020-04-26 (69 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-software
UpgradeStatus: No upgrade log present (probably fresh install)