我已经通过 list 命令列出了升级，并尝试使用 upgrade 命令进行升级，但所有 4 个包仍然没有升级。我已将命令行附加在下面。请帮助我，因为我不知道现在该怎么做。
apt list --upgradable
Listing... Done
distro-info-data/jammy-updates,jammy-updates 0.52ubuntu0.7 all [upgradable from: 0.52ubuntu0.6]
python3-update-manager/jammy-updates,jammy-updates 1:22.04.20 all [upgradable from: 1:22.04.19]
update-manager-core/jammy-updates,jammy-updates 1:22.04.20 all [upgradable from: 1:22.04.19]
update-manager/jammy-updates,jammy-updates 1:22.04.20 all [upgradable from: 1:22.04.19]
$ sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
distro-info-data python3-update-manager update-manager update-manager-core
0 upgraded, 0 newly installed, 0 to remove and **4 not upgraded**