Stop sedding out the furo Sphinx theme

It is available in Fedora for a year now
in all the supported releases.

This also won't pull furo into RHEL, because the docs are not built there.
It won't complicate the Python bootstrap either,
the bootstrap build is without docs.

python-packaging.spec

@@ -20,7 +20,7 @@
 
 Name:           python-%{pypi_name}
 Version:        23.2
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Core utilities for Python packages
 
 License:        BSD-2-Clause OR Apache-2.0
@@ -44,6 +44,7 @@ BuildRequires:  python%{python3_pkgversion}-pretend
 %endif
 %if %{with docs}
 BuildRequires:  python%{python3_pkgversion}-sphinx
+BuildRequires:  python%{python3_pkgversion}-furo
 %endif
 
 
@@ -78,9 +79,6 @@ Documentation for python-packaging
 %prep
 %autosetup -p1 -n %{pypi_name}-%{version}
 
-# Do not use furo as HTML theme in docs
-# furo is not available in Fedora
-sed -i '/html_theme = "furo"/d' docs/conf.py
 
 %if %{without bootstrap}
 %generate_buildrequires
@@ -136,6 +134,9 @@ echo '%{python3_sitelib}/packaging*' > %{pyproject_files}
 
 
 %changelog
+* Mon Oct 09 2023 Miro Hrončok <mhroncok@redhat.com> - 23.2-2
+- Use the furo Sphinx theme, as intended upstream
+
 * Mon Oct 02 2023 Lumír Balhar <lbalhar@redhat.com> - 23.2-1
 - Update to 23.2 (rhbz#2241653)