Bump imageio from 2.30.0 to 2.31.0 (#180)

Bumps [imageio](https://github.com/imageio/imageio) from 2.30.0 to 2.31.0.
- [Release notes](https://github.com/imageio/imageio/releases)
- [Changelog](https://github.com/imageio/imageio/blob/master/CHANGELOG.md)
- [Commits](imageio/imageio@v2.30.0...v2.31.0)

---
updated-dependencies:
- dependency-name: imageio
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -50,7 +50,7 @@ tests = [
 doc = [
     "recommonmark==0.7.1",
     "matplotlib==3.7.1",
-    "imageio==2.30.0",
+    "imageio==2.31.0",
     "imageio-ffmpeg==0.4.8",
     "pyvista==0.39.1",
     "numpydoc==1.5.0",