Update signed manifest to 7.28.4

manifest.json

@@ -1,11 +1,11 @@
 {
-    "version": "7.23.16",
-    "released_at": "2026-08-10T11:08:03+00:00",
-    "package_url": "https://git-cloud.weboria.eu/Weboria/argus-wp-defence/releases/download/v7.23.16/argus-wordpress-defence-7.23.16.zip",
-    "sha256": "08e3f53858885dc34bea9ca62396b3a343e146ae9310994f0eb84ec2b70107b5",
+    "version": "7.28.4",
+    "released_at": "2026-09-02T15:15:16+00:00",
+    "package_url": "https://git-cloud.weboria.eu/Weboria/argus-wp-defence/releases/download/v7.28.4/argus-wordpress-defence-7.28.4.zip",
+    "sha256": "cf52ee57ad4a7b8bacebf65311e4aafbcf7ec01b43ce195a88219acf3a05b316",
     "min_php": "7.4",
     "min_wp": "6.0",
     "critical": false,
-    "summary": "* Vulnerability checking now also runs immediately whenever a plugin or theme is installed or\n  updated (when connected to ARGUS Cloud), instead of only on the regular hourly schedule -- so you\n  find out right away if something you just installed has a known issue. The regular hourly check\n  continues to run as before for everything else.",
-    "signature": "cGe/Vc4NAWalUjkDueEw73IDsSWmEtdBsW7ppx8h+V8tStLgfxJ/KH1Kp2lIqqYF5A9EKDV8uUOXXYv4wIHDBQ=="
+    "summary": "* Fixed a bug where a brute-force login attack that ARGUS had already blocked could keep showing\n  as an active finding and unnecessarily lower your Security Score, even though the attack was\n  already stopped. Blocked attacks are now correctly marked as automatically handled.",
+    "signature": "Se38Rj8baM5nPoudeBAwd890pxtMp4i4RRb16r4j5Hi0hfLrJM7EaOy0kcayrSIUKeNaQl1lkrhToHS6/vjkDA=="
 }