CI/appveyor: Update to VS 2022 image

.appveyor.yml

@@ -1,11 +1,11 @@
-os: Visual Studio 2017
+os: Visual Studio 2022
 
 environment:
   matrix:
     - arch: x86
-      compiler: msvc2015
+      compiler: msvc2019
     - arch: x64
-      compiler: msvc2017
+      compiler: msvc2019
 
 platform:
   - x64
@@ -15,8 +15,8 @@ install:
   - cmd: mkdir C:\ninja-build
   - ps: (new-object net.webclient).DownloadFile('https://github.com/mesonbuild/cidata/raw/master/ninja.exe', 'C:\ninja-build\ninja.exe')
   # Set paths to dependencies (based on architecture)
-  - cmd: if %arch%==x86 (set PYTHON_ROOT=C:\python37) else (set PYTHON_ROOT=C:\python37-x64)
-  - cmd: if %arch%==x86 (set QT_ROOT=C:\Qt\5.11\%compiler%) else (set QT_ROOT=C:\Qt\5.11\%compiler%_64)
+  - cmd: if %arch%==x86 (set PYTHON_ROOT=C:\python312) else (set PYTHON_ROOT=C:\python312-x64)
+  - cmd: if %arch%==x86 (set QT_ROOT=C:\Qt\5.15\%compiler%) else (set QT_ROOT=C:\Qt\5.15\%compiler%_64)
   # Print out dependency paths
   - cmd: echo Using Python at %PYTHON_ROOT%
   - cmd: echo Using Qt at %QT_ROOT%
@@ -25,16 +25,12 @@ install:
   # Install meson
   - cmd: pip install meson
   # Set up the build environment
-  - cmd: if %compiler%==msvc2015 ( call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %arch% )
-  - cmd: if %compiler%==msvc2017 ( call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" %arch% )
+  - cmd: if %compiler%==msvc2019 ( call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat" %arch% )
 
 build_script:
   - cmd: echo Building on %arch% with %compiler%
-  - cmd: meson --backend=ninja -Dbuildtype=release -Ddefault_library=static -Ddemo=true builddir
-  - cmd: ninja -C builddir
-
-test_script:
-  - cmd: ninja -C builddir test
+  - cmd: meson setup --backend=ninja -Dbuildtype=release -Ddefault_library=static -Ddemo=true builddir
+  - cmd: meson compile -C builddir
 
 after_build:
   # Zip build binaries and dependencies