chore(deps): bump astro from 5.14.3 to 5.15.6 in /2025#229

mopp merged 1 commit intomainvim-jp/vimconf.org:mainfrom

dependabot/npm_and_yarn/2025/astro-5.15.6vim-jp/vimconf.org:dependabot/npm_and_yarn/2025/astro-5.15.6Copy head branch name to clipboard