release: bump minimum setuptools version slightly to match Debian 11 ('bullseye').

Author: mr-c

release-test.sh

@@ -25,8 +25,8 @@ run_tests() {
 	"${test_prefix}"bin/py.test "--ignore=${mod_loc}/schemas/" \
 		--pyargs -x ${module} -n auto --dist=loadfile
 }
-pipver=20.3.3 # minimum required version of pip for Python 3.10
-setuptoolsver=50.0.1  # fix for "AttributeError: module 'importlib.util' has no attribute 'abc'"
+pipver=20.3.4 # minimum required version of pip for Python 3.10
+setuptoolsver=52.0.0
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
 
 rm -Rf testenv? || /bin/true