Upgrade dependencies

.gitignore

@@ -6,3 +6,4 @@ coverage
 coverage.xml
 .php_cs.cache
 examples/lumen-app/vendor
+.phpunit.result.cache

.travis.yml

@@ -1,9 +1,7 @@
-dist: precise
-
 language: php
 
 php:
-  - 7.3
+  - 8.0
 
 before_install:
   - echo "extension = redis.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini

composer.json

@@ -8,10 +8,10 @@
     }
   ],
   "require": {
-    "php": "^7.3|^8.0",
-    "illuminate/support": "^8.0",
-    "illuminate/routing": "^8.0",
-    "beatlabs/prometheus_client_php": "dev-master"
+    "php": "^8.0",
+    "illuminate/support": "^9.0",
+    "illuminate/routing": "^9.0",
+    "beatlabs/prometheus_client_php": "dev-master#v0.9.4"
   },
   "repositories": [
     {
@@ -25,15 +25,10 @@
       "Tests\\": "tests/"
     }
   },
-  "extra": {
-    "branch-alias": {
-      "dev-master": "1.0-dev"
-    }
-  },
   "require-dev": {
-    "phpunit/phpunit": "^8.0",
+    "phpunit/phpunit": "^9.5",
     "mockery/mockery": "^1.0",
-    "friendsofphp/php-cs-fixer": "2.*",
-    "orchestra/testbench": "^6.0"
+    "friendsofphp/php-cs-fixer": "^3.8",
+    "orchestra/testbench": "^7.5"
   }
 }