CMake build issues

[gmou3]

When building with CMake on Linux I encounter the following issues:

CMake Deprecation Warning at libmaxminddb/CMakeLists.txt:1 (cmake_minimum_required):
  Compatibility with CMake < 3.10 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
  to tell CMake that the project requires at least <min> but has been updated
  to work with policies introduced by <max> or earlier.

See https://cmake.org/cmake/help/latest/release/3.31.html#deprecated-and-removed-features.

IPC::System::Simple required for Fatalised/autodying system() at libmaxminddb/dev-bin/make-man-pages.pl line 5.
	main::BEGIN() called at libmaxminddb/dev-bin/make-man-pages.pl line 5
	eval {...} called at libmaxminddb/dev-bin/make-man-pages.pl line 5
BEGIN failed--compilation aborted at libmaxminddb/dev-bin/make-man-pages.pl line 5.

The build proceeds smoothly otherwise. I am using CMake version 3.31.2.

[oschwald]

Thanks! These issues were fixed in #360.