Enhancements

• Unify build configurations and remove redundant properties (#2464)
• JSONSchema Validation Errors: Include paths to nested properties (#2554)
• Add Confluent-Client-Version header to requests to SR, C# client (#2549)

Fixes

• Fix DeriveKey in Hkdf implementation (#2559)
• Ensure single use of HttpRequestMessage for token fetch (#2544)
• Fix race conditions when retrieving KEK/DEK (#2565)
• Allowing for Confluent-Identity-Pool-Id to be optional (#2564)
• Ensure JSON schema access is thread-safe (#2567)
• Use lock on root schema when protecting access to subschemas (#2568)
• Processing arrays and maps sequentially to avoid race conditions (#2569)