Move cert into package

# Universität Heidelberg Root CA

# Known (self-created) CA certs

## Universität Heidelberg Root CA

Downloaded from within the university network via:

```bash

curl --insecure https://crl.uni-heidelberg.de/Universitaet-Heidelberg-Root-CA.crt > uni_root_ca.pem 

curl --insecure https://crl.uni-heidelberg.de/Universitaet-Heidelberg-Root-CA.crt > uni-heidelberg.pem 

```

Get details using:

```bash

openssl x509 -in uni_root_ca.pem -text

openssl x509 -in uni-heidelberg.pem -text

```

from pathlib import Path

def get(name: str) -> Path | None:

    guessed_path = Path(__file__).parent / f"{name}.pem"

    return guessed_path if guessed_path.exists() else None