Bump godot from 3c7173c to e4603ce in /rust

Bumps [godot](https://github.com/godot-rust/gdext) from `3c7173c` to `e4603ce`.
- [Commits](godot-rust/gdext@3c7173c...e4603ce)

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

Signed-off-by: dependabot[bot] <support@github.com>