message: Add missing appveyor test config for Visual Studio 2022.
diff: @@ -18,8 +18,7 @@ foreach ($vs in $args)
  {
  Write-Output "# Setting up VS$vs $arch"
  - if ($vs -eq 15)
  - {
  + if ($vs -eq 15) {
  $vsdevcmdarch = if ($arch -eq "x64") { "amd64" } else { "x86" }
  Invoke-CmdScript "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools\VsDevCmd.bat" "-arch=$vsdevcmdarch"
  }
  @@ -27,6 +26,10 @@ foreach ($vs in $args)
  $vsdevcmdarch = if ($arch -eq "x64") { "amd64" } else { "x86" }
  Invoke-CmdScript "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\Tools\VsDevCmd.bat" "-arch=$vsdevcmdarch"
  }
  + elseif ($vs -eq 22) {
  + $vsdevcmdarch = if ($arch -eq "x64") { "amd64" } else { "x86" }
  + Invoke-CmdScript "C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\Tools\VsDevCmd.bat" "-arch=$vsdevcmdarch"
  + }
  else
  {
  Invoke-CmdScript "C:\Program Files (x86)\Microsoft Visual Studio $vs.0\VC\vcvarsall.bat" $arch
  