Bump Django version to Current LTS Version

This patch update Django version to the current LTS version i.e. 3.2.
Django 2.2 is going to end its extended support by April 2022[1].
horizon and all its plugins already support Django3.2 version, So
let's make this the default version. It also bump few other packages
version in lower-constraints.txt to make it work with Django 3.2.

Note: It also change 'openstack-tox-py38' job to non-voting
which I will revert in follow-up patch once this patch is merged.

[1] https://www.djangoproject.com/download/

Change-Id: I49e323b76ad2c2e680c3f133d0f219d850f7908c

.zuul.d/django-jobs.yaml

@@ -38,11 +38,13 @@
         # We specify a job in openstack-python3-yoga-jobs(-horizon)
         # to keep this project template as it is used in horizon plugins.
         # NOTE: We keep it as a template even though it is not used now.
-        - openstack-tox-py38
+        - openstack-tox-py38:
+            voting: false
         - horizon-tox-python3-django32:
             voting: false
     gate:
       jobs:
-        - openstack-tox-py38
+        - openstack-tox-py38:
+            voting: false
         # Skip these until the django3.x jobs become voting.
         # - horizon-tox-python3-django32

lower-constraints.txt

@@ -15,9 +15,9 @@ cryptography==3.0
 debtcollector==1.2.0
 decorator==4.4.2
 deprecation==1.0
-Django==2.2
-django-appconf==1.0.2
-django-compressor==2.0
+Django==3.2
+django-appconf==1.0.5
+django-compressor==2.4.1
 django-debreach==1.4.2
 django-pyscss==2.0.2
 docutils==0.11
@@ -105,7 +105,7 @@ requests==2.25.1
 requestsexceptions==1.2.0
 restructuredtext-lint==1.1.1
 rfc3986==0.3.1
-rjsmin==1.0.12
+rjsmin==1.1.0
 Routes==2.3.1
 selenium==2.50.1
 semantic-version==2.3.1

requirements.txt

@@ -12,8 +12,8 @@ pbr>=5.5.0 # Apache-2.0
 # Horizon Core Requirements
 Babel>=2.6.0 # BSD
 debtcollector>=1.2.0 # Apache-2.0
-Django>=2.2,<3.0 # BSD
-django-compressor>=2.0 # MIT
+Django>=3.2,<3.3 # BSD
+django-compressor>=2.4.1 # MIT
 django-debreach>=1.4.2 # BSD License (2 clause)
 django-pyscss>=2.0.2 # BSD License (2 clause)
 futurist>=1.2.0 # Apache-2.0