Bump scratch-gui from e220547 to b476ca7 (#886)

Bumps [scratch-gui](https://github.com/TurboWarp/scratch-gui) from `e220547` to `b476ca7`.
- [Commits](TurboWarp/scratch-gui@e220547...b476ca7)

---
updated-dependencies:
- dependency-name: scratch-gui
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>