## Description

There was a recent change to the packaging of the TeXLive packages, with `l3build` being moved from `texlive-latexextra` to `texlive-bin`. Unfortunately, a number of files appear to be missing for it to work correctly. To be more specific, the l3build lua executable (packaged in `texlive-bin`) searches for additional `l3build-*` file:

```lua
-- l3build setup and functions
kpse.set_program_name("kpsewhich")
build_kpse_path = match(lookup("l3build.lua"),"(.*[/])")
local function build_require(s)
require(lookup("l3build-"..s..".lua", { path = build_kpse_path } ) )
end
```

but these were not included within `texlive-bin`:

```
$ tar -tf /var/cache/pacman/pkg/texlive-bin-2023.66984-4-x86_64.pkg.tar.zst | grep l3build
usr/bin/l3build
usr/share/texmf-dist/scripts/l3build/
usr/share/texmf-dist/scripts/l3build/l3build.lua
```

This ultimately causes `l3build` to fail to execute entirely.

This was working fine a few days ago when `l3build` was packaged as part of `texlive-latexextra-2023.66551-1':

```
$ tar -tf /var/cache/pacman/pkg/texlive-latexextra-2023.66551-1-any.pkg.tar.zst | grep l3build
usr/bin/l3build
usr/share/texmf-dist/scripts/l3build/
usr/share/texmf-dist/scripts/l3build/l3build-arguments.lua
usr/share/texmf-dist/scripts/l3build/l3build-aux.lua
usr/share/texmf-dist/scripts/l3build/l3build-check.lua
usr/share/texmf-dist/scripts/l3build/l3build-clean.lua
usr/share/texmf-dist/scripts/l3build/l3build-ctan.lua
usr/share/texmf-dist/scripts/l3build/l3build-file-functions.lua
usr/share/texmf-dist/scripts/l3build/l3build-help.lua
usr/share/texmf-dist/scripts/l3build/l3build-install.lua
usr/share/texmf-dist/scripts/l3build/l3build-manifest-setup.lua
usr/share/texmf-dist/scripts/l3build/l3build-manifest.lua
usr/share/texmf-dist/scripts/l3build/l3build-stdmain.lua
usr/share/texmf-dist/scripts/l3build/l3build-tagging.lua
usr/share/texmf-dist/scripts/l3build/l3build-typesetting.lua
usr/share/texmf-dist/scripts/l3build/l3build-unpack.lua
usr/share/texmf-dist/scripts/l3build/l3build-upload.lua
usr/share/texmf-dist/scripts/l3build/l3build-variables.lua
usr/share/texmf-dist/scripts/l3build/l3build-zip.lua
usr/share/texmf-dist/scripts/l3build/l3build.lua
usr/share/texmf-dist/tex/latex/l3build/
usr/share/texmf-dist/tex/latex/l3build/regression-test.tex
```