Update signed manifest to 7.28.4

manifest.json

@@ -1,11 +1,11 @@
 {
-    "version": "7.28.1",
-    "released_at": "2026-08-16T07:25:21+00:00",
-    "package_url": "https://git-cloud.weboria.eu/Weboria/argus-wp-defence/releases/download/v7.28.1/argus-wordpress-defence-7.28.1.zip",
-    "sha256": "88a0cca8bd117a39a12f0e3bec7900691b2eadab6fc51e8c4d02592ae4f0dd00",
+    "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": "* MFA is now a full Authentication & Access Security Center: see your account's protection status\n  at a glance, with clearer policy and enrollment options.\n* Settings has been split into focused sections (Overview, Protection, Automatic Updates, Access\n  Control, Network & GeoIP) instead of one long page.\n* Fixed a validation gap on the IP Whitelist field.",
-    "signature": "pF1HC3WkxP/cVo/Gk2R/QSOO87z6LHgGAIj3pLNQvvxl50DOSeYnNLc+3L1YJPjyh/XkjP2pxPA0QJ9l6xDfAQ=="
+    "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=="
 }