Merge pull request #7 from reactphp-parallel/dependabot/composer/wyrihaximus/constants-1.6.0

Bump wyrihaximus/constants from 1.5.0 to 1.6.0

Author: WyriHaximus

composer.json

@@ -15,7 +15,7 @@
         "react/event-loop": "^1.1",
         "react/promise": "^2.7",
         "reactivex/rxphp": "^2.0",
-        "wyrihaximus/constants": "^1.4.3",
+        "wyrihaximus/constants": "^1.6.0",
         "wyrihaximus/metrics": "^1.0"
     },
     "require-dev": {