Use correct attribution in the footer of documentation pages

To be inline with ASF policy, we should update the text in the footer used in the docs (e.g. https://arrow.apache.org/adbc/current/index.html) to match the footer used in the main website (https://arrow.apache.org/). i.e. add the trademark attribution test.

比较 arrow.apache.org/adbc/current/index.html 上的 ADBC 文档页面页脚与 arrow.apache.org/ 上主站点的页脚。找到提供文档页脚的源代码，将其署名更新为符合 ASF 要求的措辞，并验证生成的文档页面显示相同的署名。

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