Bump sphinx-pyproject from 0.1.0 to 0.3.0

Bumps [sphinx-pyproject](https://github.com/sphinx-toolbox/sphinx-pyproject) from 0.1.0 to 0.3.0.
- [Release notes](https://github.com/sphinx-toolbox/sphinx-pyproject/releases)
- [Commits](sphinx-toolbox/sphinx-pyproject@v0.1.0...v0.3.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -30,7 +30,7 @@ dev = [
   "black==23.3.0",
   "pytest==7.4.0",
   "mock==5.0.2",
-  "sphinx-pyproject==0.1.0",
+  "sphinx-pyproject==0.3.0",
   "sphinx==7.0.1",
   "Pallets-Sphinx-Themes==2.1.1",
   "tox==4.14.2"