bug-fix (by using Qt 6.7.3) qt6...metatypes.json: illegal value (windows nmake)

Author: pestophagous

json_bug_repro/ci/qtapps/provision_win.sh

@@ -13,7 +13,7 @@ fi
 pip3 install -r ${DIR}/requirements.txt  # https://github.com/miurahr/aqtinstall
 
 python3 -m aqt install-qt --outputdir $DL_FOLDER/Qt_desktop \
-  windows desktop 6.5.3 win64_msvc2019_64 \
+  windows desktop 6.7.3 win64_msvc2019_64 \
   --modules \
   qtconnectivity \
   qtimageformats \

json_bug_repro/ci/win_ci.sh

@@ -29,10 +29,10 @@ export PATH="${MSVCPATHFORBUILDING}:$PATH" # make sure MSVC link.exe is found (n
 WINDLPATH=$(cygpath -u $DL_FOLDER)
 
 # Variables used by CMakeLists
-export Qt6_DIR="${WINDLPATH}/Qt_desktop/6.5.3/msvc2019_64/lib/cmake/Qt6/"
+export Qt6_DIR="${WINDLPATH}/Qt_desktop/6.7.3/msvc2019_64/lib/cmake/Qt6/"
 
 # Put qmake on the PATH:
-export PATH="${WINDLPATH}/Qt_desktop/6.5.3/msvc2019_64/bin:$PATH"
+export PATH="${WINDLPATH}/Qt_desktop/6.7.3/msvc2019_64/bin:$PATH"