Simplify constraints

Author: pmatseykanets

composer.json

@@ -24,9 +24,9 @@
     ],
     "require": {
         "php": ">=7.0",
-        "illuminate/contracts": "~5.4|~5.5|~5.6",
-        "illuminate/database": "~5.4|~5.5|~5.6",
-        "illuminate/support": "~5.4|~5.5|~5.6",
+        "illuminate/contracts": "~5.4",
+        "illuminate/database": "~5.4",
+        "illuminate/support": "~5.4",
         "laravel/scout": "~5.0"
     },
     "require-dev": {