bump version of libraries

Author: Piotr Krajewski

composer.json

@@ -5,7 +5,7 @@
     "keywords": [
         "Laravel", "Lumen", "Eloquent", "Nested Attributes"
     ],
-    "version": "0.0.6",
+    "version": "0.0.7",
     "homepage": "https://github.com/mits87/eloquent-nested-attributes",
     "license": "MIT",
     "authors": [
@@ -15,14 +15,14 @@
         }
     ],
     "require": {
-        "php": ">=7.0",
-        "illuminate/database": "^5.4",
-        "illuminate/support": "~5.1",
-        "mockery/mockery": "^0.9.9"
+        "php": ">=7.1",
+        "illuminate/database": "^5.6",
+        "illuminate/support": "~5.6",
+        "mockery/mockery": "~1.0",
     },
     "require-dev": {
-        "phpunit/phpunit" : ">=5.4.3",
-        "squizlabs/php_codesniffer": "^2.3"
+        "phpunit/phpunit": "~7.0",
+        "squizlabs/php_codesniffer": "^3.0"
     },
     "autoload": {
         "psr-4": {