Drop SF 4 and add SF 7 support

README.md

@@ -11,24 +11,15 @@ Install via Composer:
 $ composer require isometriks/spam-bundle
 ```
 
-Use `~0.3.0` for Symfony 2.3-2.7, or `~1.0` for 3+
-
-Add to AppKernel.php (done automatically for Symfony Flex):
+If you're not using Symfony Flex, add the bundle to your `config/bundles.php` file:
 
 ```php
-class AppKernel extends Kernel
-{
-    public function registerBundles()
-    {
-        $bundles = [
-            // ...
-            new Isometriks\Bundle\SpamBundle\IsometriksSpamBundle(),
-            // ...
-        ];
-
-        return $bundles;
-    }
-}
+// config/bundles.php
+
+return [
+    // ...
+    Isometriks\Bundle\SpamBundle\IsometriksSpamBundle::class => ['all' => true],
+];
 ```
 
 Currently we have:

composer.json

@@ -1,22 +1,22 @@
 {
     "name": "isometriks/spam-bundle",
-    "description": "Provides spam protection for Symfony3 forms",
-    "keywords": ["spam", "symfony3"],
+    "description": "Provides spam protection for Symfony forms",
+    "keywords": ["spam", "symfony", "form", "bundle"],
     "require": {
         "php": ">=7.4",
-        "symfony/config": "^4.4 || ^5.4 || ^6.0",
-        "symfony/dependency-injection": "^4.4 || ^5.4 || ^6.0",
-        "symfony/event-dispatcher": "^4.4 || ^5.4 || ^6.0",
-        "symfony/form": "^4.4 || ^5.4 || ^6.0",
-        "symfony/http-foundation": "^4.4 || ^5.4 || ^6.0",
-        "symfony/http-kernel": "^4.4 || ^5.4 || ^6.0",
-        "symfony/options-resolver": "^4.4 || ^5.4 || ^6.0",
+        "symfony/config": "^5.4 || ^6.0 || ^7.0",
+        "symfony/dependency-injection": "^5.4 || ^6.0 || ^7.0",
+        "symfony/event-dispatcher": "^5.4 || ^6.0 || ^7.0",
+        "symfony/form": "^5.4 || ^6.0 || ^7.0",
+        "symfony/http-foundation": "^5.4 || ^6.0 || ^7.0",
+        "symfony/http-kernel": "^5.4 || ^6.0 || ^7.0",
+        "symfony/options-resolver": "^5.4 || ^6.0 || ^7.0",
         "symfony/translation-contracts": "1.0 || ^2.0 || ^3.0",
-        "symfony/framework-bundle": "^4.4 || ^5.4 || ^6.0"
+        "symfony/framework-bundle": "^5.4 || ^6.0 || ^7.0"
     },
     "require-dev": {
-        "symfony/phpunit-bridge": "^4.4 || ^5.4 || ^6.0",
-        "symfony/yaml": "^4.4 || ^5.4 || ^6.3"
+        "symfony/phpunit-bridge": "^5.4 || ^6.0 || ^7.0",
+        "symfony/yaml": "^5.4 || ^6.0 || ^7.0"
     },
     "authors": [
         {