Integrate "autoupdate" in autoreconf job
autoupdate as part of the
autoreconf CI job ensures
configure.ac being in line with Autoconf syntax best practices.
Changes in fa6cd603 were made by
autoupdate, except for the
win32utils/Configure change, and the
m4_define([bind_PKG_VERSION]... change, which is needed for the BIND version being set correctly in the ARMv9 PDF (reStructuredText -> \LaTeX -> PDF).
autoupdate changes on
v9_11 seems too extensive to be integrated.