need to --use-deprecated-legacy-resolver

until pypa/pip#9203 is also fixed

Author: anthrotype

Diff for: tox.ini

@@ -32,7 +32,8 @@ deps =
     ninja
 skip_install = true
 commands =
-    pip wheel --no-build-isolation -w dist --no-deps --pre --find-links {distdir} \
+    pip wheel --no-build-isolation --use-deprecated legacy-resolver \
+        -w dist --no-deps --pre --find-links {distdir} \
         --no-cache-dir --no-binary {[tox]dist_name} {[tox]dist_name}
 
 [pytest]