Require stable versions of cache/* packages

Author: Nyholm

composer.json

@@ -29,7 +29,7 @@
         "psr/cache":                "^1.0",
         "psr/simple-cache":         "^1.0",
         "cache/adapter-common": "^1.0",
-        "cache/hierarchical-cache": "^0.4"
+        "cache/hierarchical-cache": "^1.0"
     },
     "require-dev":       {
         "phpunit/phpunit":         "^5.7.21",