Update signed manifest to 7.28.4

manifest.json

@@ -1,11 +1,11 @@
 {
-    "version": "7.24.9",
-    "released_at": "2026-08-14T10:15:09+00:00",
-    "package_url": "https://git-cloud.weboria.eu/Weboria/argus-wp-defence/releases/download/v7.24.9/argus-wordpress-defence-7.24.9.zip",
-    "sha256": "5bf93afa8b2455ec8a55ad6c5a74ab7ce49d432a5b2f1004846f111346f6abbc",
+    "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": "* Added trend sparklines to the Overview dashboard's key numbers, so you can see at a glance\n  whether things are trending up or down, not just the current count.",
-    "signature": "k6Jy/WjGlfm6xXChKMhMh0suJwN0ojj6fDx87e19pj/++1sXLFtp2zTk7hFav3Y1z6Qx83tgcnb1bRhKGNgWCA=="
+    "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=="
 }