gcc win64 nightly builds are broken after Docker image update

Since 0beba970 the npapi code fails to build in nightlies:

checking for x86_64-w64-mingw32-widl... x86_64-w64-mingw32-widl
checking for ole2.h... yes
checking for olectl.h... yes
checking for objsafe.h... yes
checking widl uses -L... yes
checking for stdole2.tld presence... no

...

make[4]: *** No rule to make target '/usr/include/wine/wine/windows/stdole2.idl', needed by 'stdole2.tlb'.  Stop.
make[3]: *** [Makefile:450: all-recursive] Error 1
make[3]: Leaving directory '/builds/videolan/vlc/win64/npapi-vlc'
make[2]: *** [Makefile:382: all] Error 2
make[2]: Leaving directory '/builds/videolan/vlc/win64/npapi-vlc'
make[1]: *** [Makefile:2502: npapi-vlc/activex/axvlc.la] Error 2
make[1]: Leaving directory '/builds/videolan/vlc/win64'
make: *** [Makefile:2457: build-npapi] Error 2