Rewrite tests from VNC to RDP

The VNC installation method has been replaced with a similar method
based on RDP. This PR uses the old mechanism and alters it for the
RDP method.

The test suite consists of two parts, a server and a client part.
The server is the real test on which Fedora Custom installation
is performed from the client via RDP.

The client is spinned off the pre-installed desktop image.

Fixes #345

lib/utils.pm

@@ -473,9 +473,9 @@ sub get_setup_repos_script {
 sub get_workarounds {
     my $version = shift || get_var("VERSION");
     my %workarounds = (
-        "40" => ["FEDORA-2024-07a6f9366e"],
+        "40" => [],
         "41" => [],
-        "42" => [],
+        "42" => ["FEDORA-2024-3588cd5a27", "FEDORA-2024-1e10898d68"],
         "eln" => [],
     );
     my $advortasks = $workarounds{$version};

needles/anaconda/identification/leftbar_generic-kde-titlebar-20241128.json

@@ -8,7 +8,12 @@
       "xpos": 20
     }
   ],
-  "properties": [],
+  "properties": [
+    {
+      "name": "workaround",
+      "value": "works around anaconda title bar being visible in KDE, which it should not be"
+    }
+  ],
   "tags": [
     "leftbar_generic"
   ]