[glib] Update to 2.88.2

[SunBlack]

• Changes comply with the maintainer guide.
• SHA512s are updated for each updated download.
• The "supports" clause reflects platforms that may be fixed by this new version, or no changes were necessary.
• Any fixed CI baseline and CI feature baseline entries are removed from that file, or no entries needed to be changed.
• All patch files in the port are applied and succeed.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Exactly one version is added in each modified versions file.

[BillyONeal]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[BillyONeal]

I submitted SunBlack#5 to fix the license block for you

[BillyONeal]

GPT-5.5 observes that upstream GLib 2.88.2 includes copylibs/subprojects such as gvdb, gnulib, libcharset, and cmph. The girepository/cmph/* copylib is not installed as separate source files, but it is compiled into GLib's installed girepository-2.0 binary: upstream girepository/meson.build builds cmph as a static library, links it through girepository-gthash, and installs girepository-2.0; upstream .reuse/dep5 records girepository/cmph/* as LGPL-2.1-only or MPL-1.1

[BillyONeal]

Thanks!