[Bugfix] Fix AnyPB Parsing in Meta Service

[ajanikow]

No description provided.

[Copilot]

Pull Request Overview

This PR fixes AnyPB (Any Protocol Buffer) parsing in the Meta Service by refactoring how protocol buffer Any types are handled in JSON serialization/deserialization.

• Replaces the custom ugrpc.GRPC wrapper with a direct ObjectProto struct for better JSON compatibility
• Adds comprehensive test coverage for JSON marshaling/unmarshaling of objects containing AnyPB
• Updates the implementation to use direct field access instead of wrapper methods

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
integrations/meta/v1/object.go	Refactors Object struct to use ObjectProto instead of ugrpc.GRPC wrapper
integrations/meta/v1/impl.go	Updates Set method to access Object field directly
integrations/meta/v1/service_test.go	Adds test for JSON serialization roundtrip
CHANGELOG.md	Documents the bugfix in changelog

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