[SunBlack (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.

[Copilot]

🟢 Approval recommended

No active review issues were identified for the aws-c-auth 1.0.4 update, though review was limited to supplied diffs without builds or download verification.

No open issues 🎉

What changed in this PR

Updates the vcpkg aws-c-auth port from 1.0.3 to 1.0.4, keeping its download checksum and version registry aligned.

Changes:

• Bumps the port version to 1.0.4 and updates the source archive SHA512.
• Adds the new version database entry and advances the default baseline.

Review coverage was limited to the supplied diffs; builds and download verification were not performed.

File	Description
versions/​baseline.json	Sets the default aws-c-auth version to 1.0.4.
versions/​a-/​aws-c-auth.json	Registers version 1.0.4 and its port tree hash.
ports/​aws-c-auth/​vcpkg.json	Updates the declared port version to 1.0.4.
ports/​aws-c-auth/​portfile.cmake	Updates the source archive SHA512.

_{Review effort: Balanced}