Fix bug where AzureOpenAIEmbeddings inherits from OpenAIEmbeddings

[willtai]

Description

This PR addresses the bug in the PR https://github.com/neo4j/neo4j-graphrag-python/pull/195 and this issue https://github.com/neo4j/neo4j-graphrag-python/issues/190 . Thank you @brandon-amg for raising this!

In this PR, a separate embed_query method is created for AzureOpenAIEmbeddings and it now inherits from BaseOpenAIEmbeddings, which would avoid the openai.OpenAI client being used.

Type of Change

• [ ] New feature
• [x] Bug fix
• [ ] Breaking change
• [ ] Documentation update
• [ ] Project configuration change

Complexity

Complexity: Low

How Has This Been Tested?

• [x] Unit tests
• [ ] E2E tests
• [x] Manual tests

Checklist

The following requirements should have been met (depending on the changes in the branch):

• [ ] Documentation has been updated
• [x] Unit tests have been updated
• [ ] E2E tests have been updated
• [ ] Examples have been updated
• [ ] New files have copyright header
• [x] CLA (https://neo4j.com/developer/cla/) has been signed
• [x] CHANGELOG.md updated if appropriate

[willtai]

@CodiumAI-Agent /update_changelog

[CodiumAI-Agent]

Changelog updates: 🔄

2024-10-24

Fixed

• Resolved issue with AzureOpenAIEmbeddings incorrectly inheriting from OpenAIEmbeddings, now inherits from BaseOpenAIEmbeddings.

to commit the new content to the CHANGELOG.md file, please type: '/update_changelog --pr_update_changelog.push_changelog_changes=true'