Related to #11815 and many PRs.

QScintilla:86-windows failed to download source on CI, we can't repro this locally.
Retrigger this port.

-- Downloading https://www.riverbankcomputing.com/static/Downloads/QScintilla/2.11.4/QScintilla-2.11.4.tar.gz...
-- Downloading https://www.riverbankcomputing.com/static/Downloads/QScintilla/2.11.4/QScintilla-2.11.4.tar.gz... Failed. Status: 52;"Server returned nothing (no headers, no data)"
CMake Error at scripts/cmake/vcpkg_download_distfile.cmake:175 (message):

  Failed to download file.
  If you use a proxy, please set the HTTPS_PROXY and HTTP_PROXY environment
  variables to "https://user:password@your-proxy-ip-address:port/".
  Otherwise, please submit an issue at https://github.com/Microsoft/vcpkg/issues

Call Stack (most recent call first):
ports/qscintilla/portfile.cmake:1 (vcpkg_download_distfile)
scripts/ports.cmake:76 (include)