Update signed manifest to 7.28.3

manifest.json

@@ -1,11 +1,11 @@
 {
-    "version": "7.26.0",
-    "released_at": "2026-08-14T13:59:44+00:00",
-    "package_url": "https://git-cloud.weboria.eu/Weboria/argus-wp-defence/releases/download/v7.26.0/argus-wordpress-defence-7.26.0.zip",
-    "sha256": "9c830d71013fd8716768eb0520640df5a5688dd7b4aa80dddceda13ac3a5b32c",
+    "version": "7.28.3",
+    "released_at": "2026-08-26T09:17:12+00:00",
+    "package_url": "https://git-cloud.weboria.eu/Weboria/argus-wp-defence/releases/download/v7.28.3/argus-wordpress-defence-7.28.3.zip",
+    "sha256": "31aadccb8d21e69de528dd613e350ec749352edcf7bd4ebbf8e3d7bd2a8c9ee5",
     "min_php": "7.4",
     "min_wp": "6.0",
     "critical": false,
-    "summary": "* Fixed a large empty gap that could appear below the dashboard content on shorter pages.\n* Added a Light Mode / Dark Mode toggle to the ARGUS dashboard (top-right of the header) --\n  your choice is remembered, and it follows your system setting until you choose one.",
-    "signature": "U4y0gLqc5Kkfs5UEssa6mcGR+pxK+fOnGsTG/6zjZbshDPmRSYzrQTAvCvMq96VXBbxg/min2e6RQtSPc7AKCg=="
+    "summary": "* Fixed \"Run a scan now\" occasionally not returning to the Scanner page after starting a scan.\n* Scan errors (for example, a scan already in progress) are now shown clearly instead of the\n  button silently doing nothing.\n* Improved the reliability of scheduled protection tasks (scans, threat intelligence updates,\n  and firewall enforcement) so they keep running even in unusual hosting situations.",
+    "signature": "7QJWy1HleCIno5q5rG3WtkLfJqxmMdZfwJR9l326emfNAmbpOcaB2WJk9+o/OWuNXEcuHNOHkIFNaCwo9K1YCQ=="
 }