Add intel based images to the CI

[baptistecolle]

What does this PR do?

This PR add Intel based images to the CI

The new images will be available at

ghcr.io/huggingface/text-embeddings-inference:cpu-ipex-sha-<SHA_COMMIT>
ghcr.io/huggingface/text-embeddings-inference:xpu-ipex-sha-<SHA_COMMIT>
ghcr.io/huggingface/text-embeddings-inference:hpu-sha-<SHA_COMMIT>

[baptistecolle]

Unfortunately, I’m unable to pull and test the image from the PR due to the following condition in the workflow:

push: ${{ github.event_name != 'pull_request' }}

(See build.yaml#L126).

Ideally, we should align with TGI’s workflow for image building and set up a staging registry to allow testing CI-built images. However, I’ll leave this as a future improvement.

In the meantime, I believe this can be merged, as the images have been built and tested locally. Once the PR is merged, we’ll be able to test the latest images for cpu-ipex, xpu-ipex, and hpu-sha, and apply a patch if any issues arise. While this isn’t ideal, it seems to be the best approach without a staging environment.

[baptistecolle]

FYI: @kaixuanliu

Continuation of #517 by an external contributor (intel)