Merge pull request #113 from mezzio/renovate/webmozart-assert-2.x

Update dependency webmozart/assert to v2

Author: gsteel

composer.json

@@ -45,7 +45,7 @@
         "psr/http-factory": "^1.0",
         "psr/http-message": "^1.0.1 || ^2.0.0",
         "psr/link": "^1.0",
-        "webmozart/assert": "^1.10",
+        "webmozart/assert": "^1.10 || ^2.0",
         "willdurand/negotiation": "^3.0"
     },
     "require-dev": {