fix(meson): allow hyphens in target names

[onrcn]

The Meson parser in utils-bau.lua currently fails to detect executable targets if the target name contains a hyphen (e.g., my-app).

This PR updates the Lua patterns to include the hyphen character class.

Minimal Reproducible Example

project('test', 'c')

executable(
   'my-app',
   'main.c'
)

• Result before fix: Target is not detected/listed.
• Result after fix: my-app is correctly identified and available for selection.

Note:
I believe get_gradle_opts needs the same update, too.