0.115.1+1

fix(smoke): skip nu_plugin_* binaries that lack --version

Nushell ships nu_plugin_* helpers (e.g. nu_plugin_custom_values) that
speak only the Nushell plugin protocol over stdio. They exit with
'This plugin must be run from within Nushell' when invoked directly
and never print the expected version string, so the smoke gate fails
on bookworm after the GLIBC workaround passes bullseye.

Filter them host-side and inside the container (defense-in-depth).
Restores handling from 2870663 that was lost during template rollouts,
combined with the GLIBC suite-fallback from 3dce3fc.

0.115.0+1

smoke: skip nu_plugin_* binaries (plugin protocol only, no --version)