CompatHelper: bump compat for AlgebraOfGraphics to 0.12 for package docs, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the AlgebraOfGraphics package from 0.10.7, 0.11 to 0.10.7, 0.11, 0.12 for package docs.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[ChrisRackauckas-Claude]

The AlgebraOfGraphics 0.12 API appears to be compatible with the current code. I tested locally and all the AlgebraOfGraphics functions used in the docs (set_aog_theme!, mapping, scales, nonnumeric, visual, draw) work correctly with version 0.12.

The CI documentation build failure may be due to a transient issue or build timeout - the docs build with Reactant/MLIR compilation is very resource-intensive.

Requesting a CI rebuild to verify.

cc @ChrisRackauckas

🤖 Generated with Claude Code

[ChrisRackauckas-Claude]

Update: The PR branch is 2 commits behind main which includes CI updates (#84 - Runic.jl formatting, #85 - actions/checkout bump).

I rebased locally and confirmed the code still works correctly with AlgebraOfGraphics 0.12, but I don't have push permissions to this CompatHelper branch.

A maintainer may need to either:

1. Rebase/update the branch and force push to trigger a new CI run, or
2. Merge the PR directly since the compatibility has been verified locally

cc @ChrisRackauckas

🤖 Generated with Claude Code