update django-cors-headers and switch to inclusive settings name

see: https://github.com/ansible/awx/issues/9177

docs/cors.md

@@ -6,7 +6,7 @@ AWX supports custom CORS headers via the Django CORS Middleware
 To define CORS-specific settings, add them to ``/etc/tower/conf.d/cors.py``:
 
 ```python
-CORS_ORIGIN_WHITELIST = (
+CORS_ALLOWED_ORIGINS = (
     'hostname.example.com',
     '127.0.0.1:9000'
 )

requirements/requirements.in

@@ -12,7 +12,7 @@ daphne
 distro
 django==2.2.16  # see UPGRADE BLOCKERs
 django-auth-ldap
-django-cors-headers
+django-cors-headers>=3.5.0
 django-crum
 django-extensions>=2.2.9  # https://github.com/ansible/awx/pull/6441
 django-guid==2.2.0  # pinned to match Django 2.2

requirements/requirements.txt

@@ -70,9 +70,8 @@ cryptography==2.9.2
     #   pyopenssl
     #   service-identity
     #   social-auth-core
-Cython==0.29.22
-    # via
-    #   -r /awx_devel/requirements/requirements.in
+cython==0.29.22
+    # via -r /awx_devel/requirements/requirements.in
 daphne==2.4.1
     # via
     #   -r /awx_devel/requirements/requirements.in
@@ -88,7 +87,7 @@ distro==1.5.0
     # via -r /awx_devel/requirements/requirements.in
 django-auth-ldap==2.1.0
     # via -r /awx_devel/requirements/requirements.in
-django-cors-headers==3.2.1
+django-cors-headers==3.7.0
     # via -r /awx_devel/requirements/requirements.in
 django-crum==0.7.5
     # via -r /awx_devel/requirements/requirements.in
@@ -395,6 +394,8 @@ websocket-client==0.57.0
     # via
     #   kubernetes
     #   slackclient
+wheel==0.36.2
+    # via -r /awx_devel/requirements/requirements.in
 xmlsec==1.3.3
     # via python3-saml
 yarl==1.4.2
@@ -415,5 +416,3 @@ setuptools==41.6.0
     #   markdown
     #   python-daemon
     #   zope.interface
-wheel==0.36.2
-    # via -r /awx_devel/requirements/requirements.in