Bump koa-router from 8.0.6 to 8.0.8

Bumps [koa-router](https://github.com/koajs/koa-router) from 8.0.6 to 8.0.8.
- [Release notes](https://github.com/koajs/koa-router/releases)
- [Changelog](https://github.com/koajs/router/blob/master/history.md)
- [Commits](https://github.com/koajs/koa-router/compare/v8.0.6...v8.0.8)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -64,7 +64,7 @@
     "koa-helmet": "^5.2.0",
     "koa-logger": "~3.2.1",
     "koa-redis": "^4.0.1",
-    "koa-router": "^8.0.6",
+    "koa-router": "^8.0.8",
     "koa-session": "^5.13.1",
     "koa-static": "^5.0.0",
     "koa-views": "^6.2.1",