appveyor.yml: Update Build worker image to Visual Studio 2022

appveyor.yml

@@ -1,22 +1,13 @@
 version: 1.0.{build}
-image: Visual Studio 2017
-configuration: Release
-platform: x64
-shallow_clone: true
+image: Visual Studio 2022
 install:
-- ps: >-
-    Add-Content $ENV:UserProfile\Mercurial.ini "`r`n[extensions]`r`neol = "
-
-    (new-object net.webclient).DownloadFile('http://www.jrsoftware.org/download.php/is.exe#innosetup-6.0.3.exe', "$Env:APPVEYOR_BUILD_FOLDER/innosetup-6.0.3.exe")
-
-    & $Env:APPVEYOR_BUILD_FOLDER/innosetup-6.0.3.exe /verysilent /norestart /currentuser
-cache: 
-- build/WinMergeDownloadDeps
+- ps: ''
+cache: build/WinMergeDownloadDeps
 build_script:
 - cmd: >-
     DownloadDeps.cmd
 
-    BuildAll.vs2017.cmd x64 -ci
+    BuildAll.vs2022.cmd x64 -ci
 artifacts:
 - path: build/Releases/*.exe
-- path: build/Releases/*.zip
+- path: build/Releases/*.zip