ci: use Web normal for SPX module smoke

[joeykchen]

No description provided.

[fennoai]

Review summary

Converts the web-worker-smoke job into a web-normal-smoke job: switches the SCons build from a threaded template (threads=yes proxy_to_pthread=yes) to a non-threaded one (threads=no), and updates the job id, display names, cache-scope, and verified archive filename accordingly.

No issues found. The change is correct and internally consistent:

• The verified archive godot.web.template_release.wasm32.nothreads.zip matches the threads=no build output — SConstruct appends .nothreads to the suffix when threads are disabled.
• Dropping proxy_to_pthread=yes is correct: with threads=no, platform/web/detect.py force-disables proxy_to_pthread anyway.
• The rename is applied consistently (job id, names, cache-scope), no stale web-worker-smoke references remain in the repo, and the caller (release_builds.yml) invokes this workflow by file path rather than internal job name, so the rename doesn't break it.
• No security or permissions concerns; contents: read and static build flags are unchanged in substance.

Optional (non-blocking) note: the verified archive filename on the last step is a hardcoded literal implicitly coupled to the build flags — if flags change again it must be kept in sync manually. This matches the pre-existing pattern and is not a regression.