refactor: Organize the observability components of Cloudwego

[smx-Morgan]

What type of PR is this?

Refactor

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• The description of this PR title is user-oriented and clear enough for others to understand.
• Attach the PR updating the user documentation if the current PR requires user awareness at the usage level. User docs repo

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整合cloudwego的可观测性组件

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整合hertz和kitex生态的logging/obs- logging，obs，prom。将prom和otel的打点行为（count计数，histogram的record）抽象出一个metric，修改了otel和prom的统计请求数，统计时延逻辑，暴露了统计请求数，统计时延逻辑的接口

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[CoderPoet]

obs-logging 这块其实也是依赖 otel 库的，本质其实也是基于日志库的切面能力来集成 otel 相关能力

可以考虑和上面的 instrumentation 命名规范对齐

[GuangmingLuo]

CI workflow 参考这个模板更新下，可以做一些调整。首先保障 CI 测试能通过，包括静态检测、lint 和 Copyright header 等。
https://github.com/cloudwego/.github

[CoderPoet]

/LGTM

[rogerogers]

LGTM