Sphinxcontrib-hep-pdgref

⚠️ API changes

- First release of the renamed `sphinx-hep-pdgref` package (30)

_The full changelog as commits can be found [here](https://github.com/ComPWA/sphinx-hep-pdgref/compare/0.1.5...0.1.6)._

⚠️ API changes

- The `sphinxcontrib-hep-pdgref` namespace package is deprecated (32)
Install [`sphinx-hep-pdgref`](https://pypi.org/project/sphinx-hep-pdgref) instead!

🔨 Maintenance

- Installation is now tested on Python 3.11 (27)
- Switched to Ruff as linter (28)

_The full changelog as commits can be found [here](https://github.com/ComPWA/sphinxcontrib-hep-pdgref/compare/0.1.4...0.1.5)._

💡 New features

<details>
<summary>Python 3.10 is now supported (20)</summary>

</details>

🖱️ Developer Experience

<details>
<summary>Added PR template + gitpod extensions (6)</summary>

</details>

<details>
<summary>GitPod now installs VSCode extensions (6)</summary>

</details>

<details>
<summary>Switched to pre-commit.ci (17)</summary>

</details>

🐛 Bug fixes

Allow spaces in `pdg-review` role, like so:

restructuredtext
:pdg-review:`PDG2015; Quark Model; p.2`


which becomes:

> [PDG2015, §Quark Model, p.2](https://pdg.lbl.gov/2015/reviews/rpp2015-rev-qcd.pdf#page=2)