Adapt to tox 4.x

skipdist=True does not work with latest tox 4.x.

Also, skip_install=True without any deps causes the following task
failure in CI, because the log directory is no longer created. This
change ensures we use the individual environment instead of using
a different environment.

TASK [tox : Install any sibling python packages]
...
ubuntu-jammy | FileNotFoundError: [Errno 2] No such file or directory:
'/home/zuul/src/opendev.org/openstack/tripleo-common/.tox/pep8/log/
pep8-siblings.txt'

Also includes Ia66c28fb935a127102982f8b644397fd35b09a96.

Closes-Bug: #2000357
Co-Authored-By: Rabi Mishra <ramishra@redhat.com>
Change-Id: I638649e0722011ad39cc94f0cc0bfcf65cf1518b
(cherry picked from commit 93c2183382)
(cherry picked from commit c30505b0a8)
(cherry picked from commit 9532e28e57)

tox.ini

@@ -1,7 +1,6 @@
 [tox]
-minversion = 3.8
+minversion = 3.18.0
 envlist = linters,py
-skipsdist = True
 
 # Automatic envs will only use the python version appropriate to that
 # env and ignore basepython inherited from [testenv] if we set
@@ -36,7 +35,7 @@ deps =
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = stestr run {posargs}
-whitelist_externals =
+allowlist_externals =
     bash
     tox
 
@@ -47,9 +46,9 @@ commands = bash -c "{toxinidir}/scripts/bindep-install"
 # deprecated: covered by linters
 [testenv:pep8]
 skip_install = true
-deps =
+deps = {[testenv:linters]deps}
 commands =
-    tox -e linters -- flake8
+    python -m pre_commit run -a -- flake8
 
 [testenv:venv]
 commands = {posargs}
@@ -77,9 +76,9 @@ commands = oslo_debug_helper {posargs}
 # deprecated: covered by linters
 [testenv:bashate]
 skip_install = true
-deps =
+deps = {[testenv:linters]deps}
 commands =
-    tox -e linters -- bashate
+    python -m pre_commit run -a -- bashate
 
 [testenv:linters]
 skip_install = true
@@ -97,6 +96,6 @@ commands = bash -c tools/releasenotes_tox.sh
 [testenv:requirements]
 deps =
   -egit+https://opendev.org/openstack/requirements#egg=openstack-requirements
-whitelist_externals = sh
+allowlist_externals = sh
 commands =
     sh -c '{envdir}/src/openstack-requirements/playbooks/files/project-requirements-change.py --req {envdir}/src/openstack-requirements --local {toxinidir} master'