Skip test_stack_update_with_replacing_userdata

This test case is frequently failing because of a known libvirt issue
in Ubuntu Jammy. We already disabled one functional test case, but will
disable this test case as well, to reduce failure rate of CI runs and
unblock gate.

The existing skip for a different test case[1] is re-implemented using
the proper configuration knob.

This also fixes tox.ini to adapt to new tox 4.0.
 - Update how passenv is defined because space-separated list is no
   longer allowed. Also the values are not case sensitive.
 - skipdist=True breaks installation so is removed.

[1] https://review.opendev.org/c/openstack/heat/+/866545

Co-Authored-By: Rabi Mishra <ramishra@redhat.com>
Related-Bug: #1998274
Story: 2010487
Task: 47056
Change-Id: I915dc83ccde6b6b8497642857292f9974fd84e98

1 files changed, 4 insertions, 2 deletions

diff --git a/tox.ini b/tox.ini
index 662ebcac7..801e49dd5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,6 @@
 envlist = py38,py39,pep8
 ignore_basepython_conflict = True
 minversion = 3.18.0
-skipsdist = True
 
 [testenv]
 basepython = python3
@@ -17,7 +16,10 @@ commands =
   stestr run {posargs}
   stestr slowest
 
-passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
+passenv =
+  http_proxy
+  https_proxy
+  no_proxy
 
 [testenv:pep8]
 commands =