build(deps): bump libglnx from c1e954e to b415d04

Bumps [libglnx](https://github.com/GNOME/libglnx) from `c1e954e` to `b415d04`.
- [Commits](GNOME/libglnx@c1e954e...b415d04)

---
updated-dependencies:
- dependency-name: libglnx
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>