fix(deps): update dependency fastify to ^5.6.0 (#4042)

Co-authored-by: homarr-renovate[bot] <158783068+homarr-renovate[bot]@users.noreply.github.com>

apps/tasks/package.json

@@ -37,7 +37,7 @@
     "@homarr/widgets": "workspace:^0.1.0",
     "dayjs": "^1.11.18",
     "dotenv": "^17.2.2",
-    "fastify": "^5.5.0",
+    "fastify": "^5.6.0",
     "superjson": "2.2.2",
     "undici": "7.15.0"
   },