dev-python/msgspec: Bump to 0.20.0

Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/msgspec/Manifest

@@ -1 +1,2 @@
 DIST msgspec-0.19.0.gh.tar.gz 1313340 BLAKE2B c6e0757e4fbd2c2afbd239e483eed09fd872d8c85d14153b13ada3ef39adcd41b2f2b8f249e9747e6eef7627b4c238973593d87733cc8d5c36c5a14c15142279 SHA512 bd44052e58afc0c2653780b4dee75d20de93210950d4cd408abc810e3935d1bfdd30b926c34cd48f3095d4b3c1f45ac7aa4a957dcbc562ebd8b817c81abd16d8
+DIST msgspec-0.20.0.gh.tar.gz 1328648 BLAKE2B 848b29f99148ee1d5a81a6f57fdb515760c838e3ed9b8161f775d5c17b5decf7fc16a6ebd04599a1f2580e98882a7674720da899ba789ae6dbc9659da0d5ba6f SHA512 91d66d79d25ba824bb39dc02b28038c61ce3aa20576867bacbba9e22146dce424247f941b51023cce02d069d25bb2eedfb749feb597679c623d7438bc04422e4

dev-python/msgspec/msgspec-0.20.0.ebuild

@@ -0,0 +1,47 @@
+# Copyright 2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_EXT=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{11..14} )
+
+inherit distutils-r1 pypi
+
+DESCRIPTION="Fast serialization and validation library, with builtin support for many formats"
+HOMEPAGE="
+	https://jcristharif.com/msgspec/
+	https://github.com/jcrist/msgspec
+	https://pypi.org/project/msgspec/
+"
+# No tests in sdist
+SRC_URI="https://github.com/jcrist/msgspec/archive/refs/tags/${PV}.tar.gz -> ${P}.gh.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64"
+
+BDEPEND="
+	dev-python/cython[${PYTHON_USEDEP}]
+	>=dev-python/setuptools-scm-8[${PYTHON_USEDEP}]
+	test? (
+		dev-python/attrs[${PYTHON_USEDEP}]
+		dev-python/msgpack[${PYTHON_USEDEP}]
+		dev-python/pyyaml[${PYTHON_USEDEP}]
+		dev-python/tomli-w[${PYTHON_USEDEP}]
+	)
+"
+
+EPYTEST_PLUGINS=()
+distutils_enable_tests pytest
+
+python_test() {
+	local EPYTEST_IGNORE=(
+		# Lint tests
+		tests/unit/test_cpylint.py
+	)
+
+	rm -rf msgspec || die
+	epytest tests/unit
+}