[glib] update to 2.86.3

[AenBleidd]

• 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.
• Any fixed CI baseline entries are removed from that file.
• Any patches that are no longer applied are deleted from the port's directory.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is added to each modified port's versions file.

[Copilot]

Pull request overview

This pull request updates the glib port from version 2.86.2 (port-version 1) to version 2.86.3 (port-version 0). This is a minor version update in the stable 2.86 release series.

Key Changes

• Version bumped from 2.86.2 to 2.86.3 across all relevant files
• SHA512 hash updated for the new source archive
• Version database updated with the new version entry

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
versions/g-/glib.json	Added new version entry for 2.86.3 at the top of the versions array
versions/baseline.json	Updated baseline to 2.86.3 with port-version 0
ports/glib/vcpkg.json	Updated version field to 2.86.3 and removed port-version field (defaults to 0)
ports/glib/portfile.cmake	Updated SHA512 hash for the 2.86.3 source archive

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[AenBleidd]

It looks like arm64_osx failure is unrelated

[BillyONeal]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).