dev-python/PGPy: fix python tests

Closes: https://bugs.gentoo.org/888743

Signed-off-by: Julien Roy <julien@jroy.ca>

dev-python/PGPy/PGPy-0.6.0.ebuild

@@ -1,4 +1,4 @@
-# Copyright 2022 Gentoo Authors
+# Copyright 2022-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -22,3 +22,5 @@ DEPEND="${RDEPEND}
 	dev-python/pyasn1[${PYTHON_USEDEP}]
 	dev-python/six[${PYTHON_USEDEP}]
 "
+
+distutils_enable_tests pytest