Adding VoyageAI integration

[fzowl]

Motivation and Context

VoyageAI provides state-of-the-art embeddings models

Description

Adding VoyageAI integration
MicrosoftDocs/semantic-kernel-docs#327

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the SK Contribution Guidelines and the pre-submission formatting script raises no violations
• All unit tests pass, and I have added new tests where possible
• I didn't break anyone 😄

[Martijn Verburg (karianna)]

fzowl - test / build failures if you can PTAL?

[Martijn Verburg (karianna)]

fzowl - seeing errors such as:

Error: Medium: Exception thrown in class com.microsoft.semantickernel.services.reranking.RerankResult at new com.microsoft.semantickernel.services.reranking.RerankResult(int, String, double) will leave the constructor. The object under construction remains partially initialized and may be vulnerable to Finalizer attacks. [com.microsoft.semantickernel.services.reranking.RerankResult, com.microsoft.semantickernel.services.reranking.RerankResult] At RerankResult.java:[line 21]At RerankResult.java:[line 21] CT_CONSTRUCTOR_THROW

[fzowl]

Thanks Martijn Verburg (@karianna) — pushed a fix. The bug-check profile was failing on SpotBugs in two stages:

• CT_CONSTRUCTOR_THROW: RerankResult, the four VoyageAI service classes, and VoyageAIClient throw validation exceptions from their constructors. Marked those classes final so they can't be subclassed for a finalizer attack — the validation itself is unchanged. This was the failure that stopped the build at semantickernel-api.
• EI_EXPOSE_REP / EI_EXPOSE_REP2: the VoyageAIModels Jackson DTO accessors expose mutable list/array fields, so I annotated the getters/setters/constructor with @SuppressFBWarnings, matching the existing HuggingFace/OpenAI DTOs. (This only surfaced once the first fix let the build reach the VoyageAI module.)

I also merged current main and bumped the module's parent from 1.4.4-RC3-SNAPSHOT to 1.5.1-SNAPSHOT — the old pin made the semantickernel-bom import unresolvable. A full ./mvnw -Pbug-check -Pcompile-jdk17 clean install reactor build is green locally now. PTAL.