model.spec.extraEnv doesn't work

I tried the following manifest:
```
apiVersion: ollama.ayaka.io/v1
kind: Model
metadata:
  name: granite
  namespace: ollama-operator-system
spec:
  extraEnv:
  - name: OLLAMA_API_KEY
    value: test-key
  image: granite-embedding:278m
```
but don't see anything in `env` section for deployed ollama containers