Bump astro from 5.12.8 to 5.15.9 in /app/app#21

dependabot[bot] wants to merge 1 commit intomainFluffEvent/Votes:mainfrom

dependabot/npm_and_yarn/app/app/astro-5.15.9FluffEvent/Votes:dependabot/npm_and_yarn/app/app/astro-5.15.9Copy head branch name to clipboard