Add exported openvino model 'openvino_model_qint8_quantized.xml'

Hello!

*This pull request has been automatically generated from the [`export_static_quantized_openvino_model`](https://sbert.net/docs/package_reference/util.html#sentence_transformers.backend.export_static_quantized_openvino_model) function from the Sentence Transformers library.*

## Config
```python
OVQuantizationConfig(
quant_method=<OVQuantizationMethod.DEFAULT: 'default'>
)
```

## Tip:
Consider testing this pull request before merging by loading the model from this PR with the `revision` argument:
```python
from sentence_transformers import SentenceTransformer

# TODO: Fill in the PR number
pr_number = 2
model = SentenceTransformer(
"huggingface/CodeBERTa-small-v1",
revision=f"refs/pr/{pr_number}",
backend="openvino",
model_kwargs={"file_name": "openvino_model_qint8_quantized.xml"},
)

# Verify that everything works as expected
embeddings = model.encode(["The weather is lovely today.", "It's so sunny outside!", "He drove to the stadium."])
print(embeddings.shape)

similarities = model.similarity(embeddings, embeddings)
print(similarities)
```

openvino/openvino_model_qint8_quantized.bin

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