The final revision of PR 3029 incorporated a review suggestion of replacing
i686-w64-mingw32 with $HOST. But we forgot that $HOST is not expanded when
within single quotes so it actually broke qt-win32.yml build. This is the
minimal changes necessary to fix the qt-win32.yml build.
Workaround 1.54.0 build bug, upstream #9156
Workaround 1.51.0+ human bug, upstream #7262
This commit also demonstrates a method to verify the integrity of inputs.
mingw upgrade allows more hardening, compiler bug fixes and possibily win64 later.
Rename deps .zip files to be more consistent in revision format.
Boost #4258 build fix for mingw32
Warren Togami