Laravel 8 support (#24)

Author: absolutezeroo

.travis.yml

@@ -27,6 +27,8 @@ matrix:
           env: LARAVEL_VERSION=~7.0  TESTBENCH_VERSION=~5.0  PHPUNIT_VERSION=~8.0
         - php: 7.4
           env: LARAVEL_VERSION=~7.0  TESTBENCH_VERSION=~5.0  PHPUNIT_VERSION=~9.0
+        - php: 7.4
+          env: LARAVEL_VERSION=~8.0  TESTBENCH_VERSION=~5.0  PHPUNIT_VERSION=~9.0
 
 before_install:
     - travis_retry composer self-update

composer.json

@@ -22,11 +22,11 @@
     ],
     "require": {
         "php": "^7.2",
-        "illuminate/container": "^6.0|^7.0",
-        "illuminate/console": "^6.0|^7.0",
-        "illuminate/contracts": "^6.0|^7.0",
-        "illuminate/database": "^6.0|^7.0",
-        "illuminate/support": "^6.0|^7.0"
+        "illuminate/container": "^6.0|^7.0|^8.0",
+        "illuminate/console": "^6.0|^7.0|^8.0",
+        "illuminate/contracts": "^6.0|^7.0|^8.0",
+        "illuminate/database": "^6.0|^7.0|^8.0",
+        "illuminate/support": "^6.0|^7.0|^8.0"
     },
     "require-dev": {
         "orchestra/testbench": "^4.0|^5.0",