Alpha 4 release (#4001)

package-lock.json

 {
   "name": "django-oscar",
-  "version": "3.2.0-alpha-3",
+  "version": "3.2.0-alpha-4",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "django-oscar",
-      "version": "3.2.0-alpha-3",
+      "version": "3.2.0-alpha-4",
       "license": "MIT",
       "devDependencies": {
         "@fortawesome/fontawesome-free": "^6.1.2",

package.json

 {
   "name": "django-oscar",
-  "version": "3.2.0-alpha-3",
+  "version": "3.2.0-alpha-4",
   "description": "A domain-driven e-commerce framework for Django",
   "main": "index.js",
   "dependencies": {

src/oscar/__init__.py

 # Use 'alpha', 'beta', 'rc' or 'final' as the 4th element to indicate release type.
-VERSION = (3, 2, 0, 'alpha', 3)
+VERSION = (3, 2, 0, 'alpha', 4)
 
 
 def get_short_version():