Bump sphinx-copybutton from 0.3.1 to 0.5.2 (#3440)

Bumps [sphinx-copybutton](https://github.com/executablebooks/sphinx-copybutton) from 0.3.1 to 0.5.2.
- [Release notes](https://github.com/executablebooks/sphinx-copybutton/releases)
- [Changelog](https://github.com/executablebooks/sphinx-copybutton/blob/master/CHANGELOG.md)
- [Commits](executablebooks/sphinx-copybutton@v0.3.1...v0.5.2)

---
updated-dependencies:
- dependency-name: sphinx-copybutton
  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>
Co-authored-by: Merel Theisen <[email protected]>
Co-authored-by: Jo Stichbury <[email protected]>
Co-authored-by: Juan Luis Cano Rodríguez <[email protected]>

pyproject.toml

@@ -89,7 +89,7 @@ docs = [
     # Regression on sphinx-autodoc-typehints 1.21
     # that creates some problematic docstrings
     "sphinx-autodoc-typehints==1.20.2",
-    "sphinx_copybutton==0.3.1",
+    "sphinx_copybutton==0.5.2",
     "sphinx-notfound-page",
     "ipykernel>=5.3, <7.0",
     "myst-parser~=1.0.0",