Merge pull request #8778 from radarhere/mingw

Revert "Do not install libimagequant"

Author: hugovk

.github/workflows/test-mingw.yml

@@ -60,6 +60,7 @@ jobs:
               mingw-w64-x86_64-gcc \
               mingw-w64-x86_64-ghostscript \
               mingw-w64-x86_64-lcms2 \
+              mingw-w64-x86_64-libimagequant \
               mingw-w64-x86_64-libjpeg-turbo \
               mingw-w64-x86_64-libraqm \
               mingw-w64-x86_64-libtiff \