I think I can upgrade only Hestia by using the following commands (without the --dry-run option):
Command:
sudo apt update
Result:
...
165 packages can be upgraded. Run 'apt list --upgradable' to see them.
Command:
sudo apt --only-upgrade --dry-run install hestia hestia-nginx hestia-php
Result:
Reading package lists... Done
Building dependency tree
Reading state information... Done
hestia-php is already the newest version (8.1.12).
The following packages will be upgraded:
hestia hestia-nginx
2 upgraded, 0 newly installed, 0 to remove and 163 not upgraded.
Inst hestia [1.6.8] (1.6.14 apt repository:focal [amd64])
Inst hestia-nginx [1.23.0] (1.23.2 apt repository:focal [amd64])
Conf hestia (1.6.14 apt repository:focal [amd64])
Conf hestia-nginx (1.23.2 apt repository:focal [amd64])