Auto-update cgal to 6.1

[waruqi]

New version of cgal detected (package version: 6.0.2, last github version: 6.1)

[gemini-code-assist]

Summary of Changes

Hello @waruqi, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request automates the process of keeping the CGAL library dependency up-to-date. It specifically introduces support for the recently released version 6.1, ensuring that projects relying on this package can leverage the latest features and improvements.

Highlights

• CGAL Version Update: The CGAL library package has been updated to version 6.1, adding support for this new release within the build system configuration.

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[gemini-code-assist]

Code Review

This pull request adds version 6.1 for the cgal package. While the version addition is correct, it reveals a latent issue in the package's test configuration. The test needs to be updated to use C++17 for CGAL versions 6.0 and newer to prevent failures. I've added a specific comment regarding this. Additionally, I noticed some older version entries are not sorted, which could be addressed in a future PR for improved maintainability.

[gemini-code-assist]

The addition of version 6.1 requires an update to the test configuration. CGAL versions 6.0 and newer require C++17, but the current logic on line 79 selects C++14 for this new version. This will likely cause the test to fail.

Please update the on_test block to select the correct C++ standard based on the version. For example:

on_test(function (package)
    local lang = "c++11"
    if package:version():ge("6.0") then
        lang = "c++17"
    elseif package:version():ge("5.0.0") then
        lang = "c++14"
    end
    assert(package:check_cxxsnippets({test = [[...]]}, {configs = {languages = lang}, includes = {"CGAL/Epick_d.h", "CGAL/Delaunay_triangulation.h"}}))
end)