chore: update composer

Author: thelfensdrfer

.gitignore

@@ -1,5 +1,9 @@
-/build
-/composer.phar
-/composer.lock
-/vendor
-/test.php
+.idea/
+build/
+vendor/
+
+composer.phar
+composer.lock
+test.php
+
+*.cache

composer.json

@@ -25,13 +25,15 @@
         }
     ],
     "require": {
-        "laravel/framework": ">=5.6",
-        "illuminate/log": ">=5.6",
-        "illuminate/support": ">=5.6",
-        "influxdb/influxdb-php": "1.14.*"
+        "php": "^8.0",
+        "laravel/framework": ">=8.0",
+        "illuminate/log": ">=8.0",
+        "illuminate/support": ">=8.0",
+        "influxdb/influxdb-php": "^1.15.2"
     },
     "require-dev": {
-        "phpunit/phpunit": "7.4.*"
+        "roave/security-advisories": "dev-latest",
+        "phpunit/phpunit": "^8.5"
     },
     "autoload": {
         "psr-4": {