deps: update dependency @hey-api/openapi-ts to v0.86.4

Author: eclipse-apoapsis-bot

ui/package.json

@@ -64,7 +64,7 @@
     "@eslint/compat": "^1.4.0",
     "@eslint/eslintrc": "^3.3.1",
     "@eslint/js": "^9.37.0",
-    "@hey-api/openapi-ts": "0.86.3",
+    "@hey-api/openapi-ts": "0.86.4",
     "@ianvs/prettier-plugin-sort-imports": "^4.2.1",
     "@tailwindcss/postcss": "^4.0.0",
     "@tailwindcss/typography": "^0.5.15",