docs: add key for looped contents

@coreui/coreui                             ^5.1.2  →       ^5.2.0
@docsearch/css                             ^3.6.1  →       ^3.6.2
@docsearch/js                              ^3.6.1  →       ^3.6.2
@rollup/plugin-commonjs                   ^26.0.1  →      ^28.0.1
@rollup/plugin-node-resolve               ^15.2.3  →      ^15.3.0
@rollup/plugin-typescript                 ^11.1.6  →      ^12.1.1
@types/jest                              ^29.5.13  →     ^29.5.14
@typescript-eslint/eslint-plugin           ^8.6.0  →      ^8.12.1
@typescript-eslint/parser                  ^8.6.0  →      ^8.12.1
@vue/eslint-config-prettier                ^9.0.0  →      ^10.1.0
@vue/eslint-config-typescript             ^13.0.0  →      ^14.1.3
@vuepress/bundler-vite                2.0.0-rc.15  →  2.0.0-rc.18
@vuepress/bundler-webpack             2.0.0-rc.15  →  2.0.0-rc.18
@vuepress/plugin-active-header-links  2.0.0-rc.47  →  2.0.0-rc.55
@vuepress/plugin-git                  2.0.0-rc.44  →  2.0.0-rc.56
@vuepress/plugin-markdown-container   2.0.0-rc.43  →  2.0.0-rc.54
@vuepress/plugin-register-components  2.0.0-rc.44  →  2.0.0-rc.54
@vuepress/plugin-theme-data           2.0.0-rc.47  →  2.0.0-rc.57
@vuepress/plugin-toc                  2.0.0-rc.47  →  2.0.0-rc.55
@vuepress/shared                      2.0.0-rc.15  →  2.0.0-rc.18
@vuepress/utils                       2.0.0-rc.15  →  2.0.0-rc.18
eslint                                     8.57.0  →       9.13.0
eslint-plugin-unicorn                     ^55.0.0  →      ^56.0.0
eslint-plugin-vue                         ^9.28.0  →      ^9.30.0
rollup                                    ^4.22.4  →      ^4.24.2
sass                                      ^1.79.3  →      ^1.80.4
typescript                                 ^5.6.2  →       ^5.6.3
vue                                        ^3.5.8  →      ^3.5.12
vuepress                              2.0.0-rc.15  →  2.0.0-rc.18