Allow paragonie/random_compat's empty 9.99.99 placeholder

Author: BusterNeece

composer.json

@@ -8,7 +8,7 @@
     "require": {
         "php": "^5.6|^7.0",
         "guzzlehttp/guzzle": "^6.0",
-        "paragonie/random_compat": "^1|^2"
+        "paragonie/random_compat": "^1|^2|^9.99"
     },
     "require-dev": {
         "eloquent/liberator": "^2.0",