Publish symbols to nuget symbol server

[jfloodnet]

Description

Publishing symbols to a symbol server will enable developers to step through the library code.

With the lack of documentation, being able to step through the running code using pdb files would help me troubleshoot issues.

How to reproduce

https://nuget.info/packages/Confluent.SchemaRegistry.Serdes.Json/2.4.0

See above link "missing symbols"

https://learn.microsoft.com/en-us/nuget/api/symbol-package-publish-resource

Checklist

Please provide the following information:

• [ ] A complete (i.e. we can run it), minimal program demonstrating the problem. No need to supply a project file.
• [ ] Confluent.Kafka nuget version.
• [ ] Apache Kafka version.
• [ ] Client configuration.
• [ ] Operating system.
• [ ] Provide logs (with "debug" : "..." as necessary in configuration).
• [ ] Provide broker log excerpts.
• [ ] Critical issue.