Import times are too slow

Just adding `import authentik_client` add +9s of initialization time!

```py
import os
import sys
import authentik_client

def main():
print(f"Hello")

if __name__ == "__main__":
main()
```

Run time:
```
$ time python3 test-script.py
Hello

real 0m9.459s
user 0m9.361s
sys 0m0.098s
```

Comenting out the import:

```py
import os
import sys

def main():
print(f"Hello")

if __name__ == "__main__":
main()
```

Run time:
```
$ time python3 test-script.py
Hello

real 0m0.013s
user 0m0.011s
sys 0m0.003s
```

Reproduce the timing from test-script.py with and without `import authentik_client`. Start at the `authentik_client` package entry point and trace what runs during import. Done means the client still imports and works while the reported initialization delay is reduced and the timing is verified.

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