Python package updates (#5616)

* python-markdown: Update to 3.9

* python-pytest: Update to 8.4.2

* python-lxml: Update to 6.0.1

* python-setuptools-scm: Update to 9.2.0

* gi-docgen: Update to 2025.4

python-markdown/PKGBUILD

@@ -2,7 +2,7 @@
 
 _pyname=markdown
 pkgname=python-markdown
-pkgver=3.8.1
+pkgver=3.9
 pkgrel=1
 pkgdesc="Python implementation of John Gruber's Markdown"
 arch=('any')
@@ -17,7 +17,7 @@ msys2_references=(
   'purl: pkg:pypi/markdown'
 )
 source=("${_pyname}-$pkgver.tar.gz"::"https://pypi.org/packages/source/${_pyname::1}/${_pyname}/${_pyname}-${pkgver}.tar.gz")
-sha256sums=('a2e2f01cead4828ee74ecca9623045f62216aef2212a7685d6eb9163f590b8c1')
+sha256sums=('d2900fe1782bd33bdbbd56859defef70c2e78fc46668f8eb9df3128138f2cb6a')
 
 build() {
   cd "${_pyname}-$pkgver"