AppVeyor: try building with Visual Studio 2022.

(cherry picked from commit cf3566e)

[skip ci]

Author: guyharris

.appveyor.yml

@@ -57,6 +57,22 @@ environment:
       GENERATOR: "Visual Studio 16 2019"
       PLATFORM: x64
       SDK: npcap-sdk-1.12
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
+      GENERATOR: "Visual Studio 17 2022"
+      PLATFORM: Win32
+      SDK: WpdPack
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
+      GENERATOR: "Visual Studio 17 2022"
+      PLATFORM: x64
+      SDK: WpdPack
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
+      GENERATOR: "Visual Studio 17 2022"
+      PLATFORM: Win32
+      SDK: npcap-sdk-1.12
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
+      GENERATOR: "Visual Studio 17 2022"
+      PLATFORM: x64
+      SDK: npcap-sdk-1.12
 
 build_script:
   #