feat: add prefixes to supported model patterns to allow cross region model ids

[abrahamy]

Related Issues

• fixes DC-2665

Proposed Changes:

Expands the regular expression used to select specific adapters by model id name to support models that are cross region. In general, model ids take on a us. or eu. prefix when used across regions.

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• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
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[anakin87]

This recent contribution seems related: https://github.com/deepset-ai/haystack-core-integrations/pull/1120