Subject: Request for merging "c++-team" branch

From: Greg Hogan <[email-masked]>
Date: Sun, 9 Mar 2025 17:10:14 -0400

The branch includes the following patches:

#70031 Use CMake in build-system/cmake.
#76151 gnu: jsoncpp: Update to 1.9.6.

More details are in the introduction to #70031, but in short
  cmake is updated to 3.30.8 from 3.25.1
  cmake-bootstrap is updated to 3.30.8 from 3.24.2
  jsoncpp is updated to 1.9.6 from 1.9.5, dependents reduced to 180 from 24,642

Greg