chore: upgrade vite to ^8.0.16 to address CVE-2026-53571

Co-authored-by: linear-code[bot] <222613912+linear-code[bot]@users.noreply.github.com>

Author: brendan-kellam

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+- Upgraded `vite` to `^8.0.16`. [#1312](https://github.com/sourcebot-dev/sourcebot/pull/1312)
+
 ## [5.0.3] - 2026-06-17
 
 ### Changed