Bump autopep8 and imageio (#2278)

Bumps [autopep8](https://github.com/hhatto/autopep8) and [imageio](https://github.com/imageio/imageio). These dependencies needed to be updated together.

Updates `autopep8` from 2.0.2 to 2.0.4
- [Release notes](https://github.com/hhatto/autopep8/releases)
- [Commits](hhatto/autopep8@v2.0.2...v2.0.4)

Updates `imageio` from 2.31.1 to 2.31.2
- [Release notes](https://github.com/imageio/imageio/releases)
- [Changelog](https://github.com/imageio/imageio/blob/master/CHANGELOG.md)
- [Commits](imageio/imageio@v2.31.1...v2.31.2)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Camille <[email protected]>

Author: github-actions[bot]

pyproject.toml

@@ -57,7 +57,7 @@ classifiers = [
 [project.optional-dependencies]
 tests = [
     "ansys-dpf-core==0.9.0",
-    "autopep8==2.0.2",
+    "autopep8==2.0.4",
     "matplotlib==3.7.2",
     "scipy==1.10.1; python_version < '3.9'", # to support python 3.8
     "scipy==1.11.2; python_version > '3.8'",
@@ -77,7 +77,7 @@ doc = [
     "ansys-sphinx-theme==0.10.4",
     "grpcio==1.51.1",
     "imageio-ffmpeg==0.4.8",
-    "imageio==2.31.1",
+    "imageio==2.31.2",
     "jupyter_sphinx==0.4.0",
     "jupyterlab>=3.2.8",
     "matplotlib==3.7.2",