Problem with updates: Repository 'Debian bookworm' changed its 'non-free component'

[diederik]

I changed the entry from 

Code:

deb https://deb.debian.org/debian bookworm main

to

Code:

deb https://deb.debian.org/debian bookworm main non-free non-free-firmware

This has changed things, but instead of getting the zillion packages (that ought to be expected after weeks without upgrades)  it looks like this:

Code:

Hit:1 http://deb.debian.org/debian bookworm InRelease
Hit:2 http://repo.mobian.org bookworm InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Anything I can do in order to get upgrades again?

It seems everything is actually working as expected.
Debian Bookworm = Debian Stable (currently), which means updates aren't as often as f.e. Stable does not get new upstream versions, only fixes to (serious) bugs applied to the version in Stable.
AFAICT the 12.1 point release was on 22nd July and the 12.2 point release is scheduled for 7th October at which point you should get a bunch of updated packages.

This is a feature, not a bug ;-)

But you should add the following line to get security updates:
deb http://security.debian.org/debian-security bookworm-security main non-free non-free-firmware

Those updates could come in at any time when a security issue is found (and fixed).