[OSPP]Support Kubernetes ConfigMap for Apollo java, golang client

[dyx1234]

What's the purpose of this PR

解决Apollo客户端在Kubernetes环境下因服务端宕机或Pod重启导致配置信息文件丢失的问题。通过使用Kubernetes ConfigMap作为新的持久化存储方案，提高配置信息的可靠性和容错性。

Solve the problem of Apollo client configuration information files being lost due to server downtime or Pod restart in the Kubernetes environment. By using Kubernetes ConfigMap as a new persistent storage solution, the reliability and fault tolerance of configuration information are improved.

discussion apolloconfig/apollo#5210

Brief changelog

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Summary by CodeRabbit

• New Features

  • Introduced support for Kubernetes ConfigMap caching in the Apollo client.
  • Added configuration options for enabling Kubernetes cache and specifying the namespace.

• Bug Fixes

  • Enhanced error handling and logging for ConfigMap operations.

• Tests

  • Added comprehensive unit tests for K8sConfigMapConfigRepository and KubernetesManager to ensure functionality and reliability.

• Documentation

  • Updated release notes to include new features and fixes related to Kubernetes support.