Bug#1040733: docopt.cpp: autopkgtest failure due to new CMake deprecation warning

[roehling at debian.org]

Source: docopt.cpp
Version: 0.6.2-2.3
Severity: important
User: roehling at debian.org
Usertags: cmake3.27

Dear maintainer,

your package docopt.cpp will soon experience autopkgtest failures
because the new CMake release 3.27 will issue a deprecation warning
on stderr if cmake_minimum_required() asks for compatibility with
CMake 3.4 or older.

You can check for the exact failure on the cmake pseudo-excuses page
from experimental:
https://qa.debian.org/excuses.php?experimental=1&package=cmake

For a more in-depth discussion, kindly refer to the debian-devel
thread: https://lists.debian.org/debian-devel/2023/06/msg00150.html

Cheers

Timo