How are HA dependencies managed?

In the .homeassistant/deps directory, I have a influxdb_client package, which is quite old (v1.24). And there are some more packages from 2022.
I wonder where I can find the list of packages to be installed in the deps directory and when they are updated? Is it in package_constraints.txt ? But there is no influxdb_client mentioned?

That doesn’t seem to actually belong to HA.
If by .homeassistant, you mean HA config directory, I definitely do not have it.