Update dependencies for v2.9

docs/installation/2-redis.md

@@ -4,6 +4,9 @@
 
 [Redis](https://redis.io/) is an in-memory key-value store which NetBox employs for caching and queuing. This section entails the installation and configuration of a local Redis instance. If you already have a Redis service in place, skip to [the next section](3-netbox.md).
 
+!!! note
+    NetBox v2.9.0 or later requires Redis v4.0 or higher.
+
 ### Ubuntu
 
 ```no-highlight

requirements.txt

@@ -1,24 +1,24 @@
 Django>=3.0,<3.1
-django-cacheops==4.2
-django-cors-headers==3.2.1
+django-cacheops==5.0.1
+django-cors-headers==3.4.0
 django-debug-toolbar==2.2
-django-filter==2.2.0
+django-filter==2.3.0
 django-mptt==0.11.0
 django-pglocks==1.0.4
 django-prometheus==2.0.0
 django-rq==2.3.2
 django-tables2==2.3.1
-django-taggit==1.2.0
+django-taggit==1.3.0
 django-timezone-field==4.0
 djangorestframework==3.11.0
 drf-yasg[validation]==1.17.1
 gunicorn==20.0.4
-Jinja2==2.11.1
-Markdown==3.2.1
-netaddr==0.7.19
-Pillow==7.1.1
+Jinja2==2.11.2
+Markdown==3.2.2
+netaddr==0.8.0
+Pillow==7.2.0
 psycopg2-binary==2.8.5
-pycryptodome==3.9.7
+pycryptodome==3.9.8
 PyYAML==5.3.1
-redis==3.4.1
+redis==3.5.3
 svgwrite==1.4