为 hmac-auth 插件编写 spec.yaml

[CH3CHO]

Why do you need it?

为了让 Higress Console 可以支持配置 hmac-auth 插件。

How could it be?

参考 Wasm Plugin 镜像规范为 hmac-auth 插件编写 spec.yaml。

文件位置：https://github.com/higress-group/higress-console/tree/main/backend/src/main/resources/plugins/hmac-auth

参考信息：

• https://github.com/alibaba/higress/tree/main/plugins/wasm-cpp/extensions/hmac_auth
• https://github.com/higress-group/higress-console/blob/main/backend/src/main/resources/plugins/basic-auth/spec.yaml