[c-ares] Update to 1.31.0

[MonicaLiu0311]

Update c-ares to 1.31.0.

No feature needs to be tested, the usage test passed on x64-windows (header files found):

The package c-ares provides CMake targets:

    find_package(c-ares CONFIG REQUIRED)
    target_link_libraries(main PRIVATE c-ares::cares)

• [x] Changes comply with the maintainer guide.
• [x] SHA512s are updated for each updated download.
• [ ] ~The "supports" clause reflects platforms that may be fixed by this new version.~
• [ ] ~Any fixed CI baseline entries are removed from that file.~
• [ ] ~Any patches that are no longer applied are deleted from the port's directory.
• [x] The version database is fixed by rerunning ./vcpkg x-add-version --all and commit~ting the result.
• [x] Only one version is added to each modified port's versions file.