This commit updates the OpenVINO model conversion script and its
dependencies as they were currently not working.
The first issue was an import that needed updating for fix the following
error:
```console
(openvino_conv_env) $ python convert-whisper-to-openvino.py --model base.en
Traceback (most recent call last):
File "/home/danbev/work/ai/whisper-work/models/convert-whisper-to-openvino.py", line 6, in <module>
from openvino.runtime import serialize
ModuleNotFoundError: No module named 'openvino.runtime'
```
And after that there was a missing dependency:
```console
ModuleNotFoundError: No module named 'onnxscript'
```
With the changes in this commit I was able to successfully convert the model
and run the inference using OpenVINO.
Daniel Bevenius