Enable the usage of DPI Certs

[robin-weiland]

I have a docker container as part of a coder workspace. The whole server is behind a firewall that uses DPI (not my decision), and clients need to have the right certificate to not freak out about self-signed certs.
Before I added this cert to the container. I couldn't even install the code-server before getting an error.
Afterward, I can install it, but when I want to install an extension (either though the terraform or the code-server UI) I get the certificate error again.
Is there maybe a config or flag that lets code-server use system certs?

Error while installing extensions: self-signed certificate in certificate chain

self-signed certificate in certificate chain

Failed to install extension: ms-python.python: Installing extensions...