Upgrade to Laravel 9 (#4413)

Co-authored-by: DaneEveritt <dane@daneeveritt.com>

app/Providers/SettingsServiceProvider.php

@@ -15,10 +15,8 @@ class SettingsServiceProvider extends ServiceProvider
     /**
      * An array of configuration keys to override with database values
      * if they exist.
-     *
-     * @var array
      */
-    protected $keys = [
+    protected array $keys = [
         'app:name',
         'app:locale',
         'recaptcha:enabled',
@@ -37,10 +35,8 @@ class SettingsServiceProvider extends ServiceProvider
     /**
      * Keys specific to the mail driver that are only grabbed from the database
      * when using the SMTP driver.
-     *
-     * @var array
      */
-    protected $emailKeys = [
+    protected array $emailKeys = [
         'mail:host',
         'mail:port',
         'mail:from:address',
@@ -53,10 +49,8 @@ class SettingsServiceProvider extends ServiceProvider
     /**
      * Keys that are encrypted and should be decrypted when set in the
      * configuration array.
-     *
-     * @var array
      */
-    protected static $encrypted = [
+    protected static array $encrypted = [
         'mail:password',
     ];