icinga2: 2.14.2 -> 2.14.3 (#355443)

Fixes critical CVE-2024-49369 by updating Icinga 2 to 2.14.3.

- https://github.com/Icinga/icinga2/releases/tag/v2.14.3
- https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpv
- https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14-3/
- https://icinga.com/blog/2024/11/04/icinga2-security-pre-announcement/

pkgs/servers/monitoring/icinga2/default.nix

@@ -9,13 +9,13 @@
 
 stdenv.mkDerivation rec {
   pname = "icinga2${nameSuffix}";
-  version = "2.14.2";
+  version = "2.14.3";
 
   src = fetchFromGitHub {
     owner = "icinga";
     repo = "icinga2";
     rev = "v${version}";
-    sha256 = "sha256-vUtLGkTLGObx3zbfRTboNVsl9AmpAkHc+IhWhnKupSM=";
+    hash = "sha256-QXe/+yQlyyOa78eEiudDni08SCUP3nhTYVpbmVUVKA8=";
   };
 
   patches = [