chore: replace requirements

composer.json

@@ -13,7 +13,7 @@
     ],
     "config": {
         "platform": {
-            "php": "7.0.8"
+            "php": "7.4.33"
         },
         "allow-plugins": {
             "kylekatarnls/update-helper": true,
@@ -21,7 +21,7 @@
         }
     },
     "require": {
-        "php": ">=7.0.8",
+        "php": ">=7.4",
 	    "wpdesk/wp-builder": "^1.0|^2.0"
 	},
     "require-dev": {
@@ -30,7 +30,8 @@
         "mockery/mockery": "*",
         "10up/wp_mock": "*",
         "wimg/php-compatibility": "^8",
-        "wpdesk/wp-codeception": "^2.7"
+        "wpdesk/wp-codeception": "^2.7",
+        "phpunit/phpunit": "^8"
     },
     "autoload": {
 		"psr-4": {"WPDesk\\Notice\\": "src/WPDesk/Notice/"},