fix: update @asyncapi/specs to 6.8.0 version and others (#1052)

Author: asyncapi-bot

package-lock.json

@@ -42,7 +42,7 @@
     "prepublishOnly": "npm run generate:assets"
   },
   "dependencies": {
-    "@asyncapi/specs": "^6.6.0",
+    "@asyncapi/specs": "^6.8.0",
     "@openapi-contrib/openapi-schema-to-json-schema": "~3.2.0",
     "@stoplight/json": "3.21.0",
     "@stoplight/json-ref-readers": "^1.2.2",