Update signed manifest to 7.28.6

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": "7.28.6",
+    "released_at": "2026-09-10T15:41:13+00:00",
+    "package_url": "https://git-cloud.weboria.eu/Weboria/argus-wp-defence/releases/download/v7.28.6/argus-wordpress-defence-7.28.6.zip",
+    "sha256": "1b3637f2b697241b81cdd012e1b6a3f5ce4213aacfe678be9a31802b9eb0d82b",
     "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": "* Findings now clear from \"Needs Attention\" at a pace that matches their own severity, instead of\n  all waiting up to 30 days -- a minor, already-stopped event (like a single blocked login attempt)\n  no longer lingers in your list as long as a serious, ongoing attack does.\n* Fixed a few more places (checkout-fraud protection among them) where an attack ARGUS had already\n  stopped could still show up as something needing your attention.",
+    "signature": "qCiRPFfkY7whZMvsvQ47rljnMQiF8rK+vw81NwgCzOKGuCxPMJuYgPg1n42D51kUvIIieHZJJx/F3wHOvY/SBA=="
 }