Docker image: update to the latest* Windows 10 patch release
Docker image: update to the latest* Windows 10 patch release

*We actually only update to 10.0.14393.1480 and not
10.0.14393.1593 because at the time of writing, .1593 causes the
installation of Visual C++ Build Tools to silently fail.

Safeguards against this failure will be provided in a subsequent
patch.

Change-Id: I3b643592a5948daafc00f84489e54211679666cc
Reviewed-by: Christian Kandeler <3aa99dcdd3f0cac61fb81c2a11771c0cc2497607@qt.io>

qtproject/qt-labs-qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qt-labs/qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qtproject/qt-labs-qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qtproject/qt-labs-qbs,qt-labs/qbs,qt-labs/qbs