feat: add non-generic Deserialize method with dynamic code requirements to KubernetesJson

[kimpenhaus]

this PR adds a non-generic Deserialise method to KubernetesJson.cs

Reason:

based on this discussion adding a non generic Deserialize method gives the opportunity to use the same json serialisation mechanism everywhere - when using KubernetesClient package.

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• ✅ login: kimpenhaus / name: Marcus Kimpenhaus (37c1205, 5b59fb7, 5d881c1)

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Pull request overview

This PR adds a non-generic Deserialize(string json, Type returnType, JsonSerializerOptions jsonSerializerOptions = null) method to the KubernetesJson class. This provides an alternative to the existing generic Deserialize<TValue> methods when the target type is only known at runtime, enabling more flexible use of the Kubernetes client's JSON serialization infrastructure.

Key changes:

• Adds a new public non-generic Deserialize method that accepts a Type parameter
• Includes appropriate RequiresDynamicCode and RequiresUnreferencedCode attributes for .NET 8.0+ to warn about AOT compatibility concerns
• Imports System.Diagnostics.CodeAnalysis namespace for the new attributes

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