fix(hz): proto go_package

[FGYFFFF]

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fix

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• The description of this PR title is user-oriented and clear enough for others to understand.
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修复 proto go_package 的特殊 case

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en: fix go_package
zh(optional): 修复 proto go_package 的特殊 case，为应对各种 go_package 的需求，以后需要规范 go_package 的写法

option go_package = "./";

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