Fix AzureOpenAiStreamingChatModel constructor get or default new Tokenizer

[Kugaaa]

Issue

no issue
I found during unit testing

Change

AzureOpenAiStreamingChatModel constructor get or default new Tokenizer
Referenced OpenAiStreamingChatModel

General checklist

• There are no breaking changes
• I have added unit and integration tests for my change
• I have manually run all the unit and integration tests in the module I have added/changed, and they are all green
• I have manually run all the unit and integration tests in the core and main modules, and they are all green

• I have added/updated the documentation
• I have added/updated Spring Boot starter(s) (if applicable)
• I have added an example in the examples repo (only for "big" features)

Checklist for adding new model integration

• I have added my new module in the BOM

Checklist for adding new embedding store integration

• I have added a {NameOfIntegration}EmbeddingStoreIT that extends from either EmbeddingStoreIT or EmbeddingStoreWithFilteringIT
• I have added my new module in the BOM

Checklist for changing existing embedding store integration

• I have manually verified that the {NameOfIntegration}EmbeddingStore works correctly with the data persisted using the latest released version of LangChain4j

[pax95]

Found this too. Waiting for it to get merged

[langchain4j]

Thanks a lot! This change should probably be applied to ass Azure*Model classes?

cc @agoncal