Update composer.json

Author: walkor

composer.json

@@ -29,7 +29,7 @@
     "workerman/workerman": "^5.1 || dev-master",
     "nikic/fast-route": "^1.3",
     "psr/container": ">=1.0",
-    "psr/log": "^3.0"
+    "psr/log": "^2.0 || ^3.0"
   },
   "suggest": {
     "ext-event": "For better performance. "