Update ares-deps dependencies, improve dynamic dependency debugging #2271
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Updates ares-deps to the 2025-10-27 release. This does not increment the versions of any ares dependencies, but rather includes supplemental source code.
This PR also adds the
ARES_DEBUG_DEPENDENCIESbuild option. When enabled, CMake will download full source code rather than only binaries and headers from ares-deps, and will also populate.lldbinitand.gdbinitfiles at the build directory root that enable full source view debugging of precompiled dependencies.CMake's Xcode generator includes direct support for lldbinit files when launching the debugger, which this PR takes advantage of:

This is a quality of life change aimed at improving tooling generally, and making it easier to debug dynamic dependencies.
(This PR also disables Metal GPU capture by default, because of a memory use issue in Xcode with MoltenVK compiled with newer versions of the macOS SDK now in use on GitHub Actions).