Fix #2116: request: lua interpreter support

[leftibot]

Automated fix by @leftibot.

What changed

Fix #2116: add Lua interpreter support
Mirror compiler-explorer/compiler-explorer PR #8696 on the infra side.
Adds bin/yaml/lua.yaml to install PUC-Rio Lua 5.1.5, 5.2.4, 5.3.6, 5.4.7
and 5.5.0 via the s3tarballs installer, lists lua as a buildable image in
the bespoke-build workflow, and adds a regression test ensuring lua.yaml
exists and exposes the expected versions.
Co-Authored-By: Claude Opus 4.7 (1M context) noreply@anthropic.com

Files

 .github/workflows/bespoke-build.yaml |  1 +
 bin/test/lua_yaml_test.py            | 31 +++++++++++++++++++++++++++++++
 bin/yaml/lua.yaml                    | 10 ++++++++++
 3 files changed, 42 insertions(+)

Closes #2116

Triggered by @lefticus.