Update Django and related

requirements.txt

 # Core
 argon2-cffi==20.1.0		# 2021-07-18 Password hashing algorithm
 Babel==2.9.1			# 2022-01-23
-Django==3.2.14			# 2022-07-07
+Django==3.2.16			# 2022-11-18
 feedparser~=6.0.8     # Check: not updated since 2016. [JdW, 2021-09-25] Upgrade to v6; v5 fails.
 psycopg2==2.8.6	  		# 2020-09-19 PostgreSQL engine
-pytz==2021.1          # 2021-07-15 Timezone package
+pytz==2021.3			# 2022-11-18 Timezone package
 # djangorestframework==3.9.3	# DEPREC, see next entry -- 2019-12-05  IMPORTANT: update templates/rest_framework/base.html if corresponding file rest_framework/templates/rest_framework/base.html has changed
 git+https://github.com/SciPost/django-rest-framework.git@bootstrap-v5
 requests==2.25.1      # 2021-05-21
@@ -77,10 +77,10 @@ snowballstemmer==1.2.1
 
 
 # Scheduled tasks
-celery==5.2.2 		            # 2022-01-23
-django-celery-results==2.0.1	# 2021-06-06
-django-celery-beat==2.2.0	    # 2021-06-06
-flower==1.0.0 			          # 2021-07-18
+celery==5.2.7 		            # 2022-11-18
+django-celery-results==2.4.0 	    # 2022-11-18
+django-celery-beat==2.4.0	    # 2022-11-18
+flower==1.2.0 			    # 2022-11-18
 
 
 # Security-related packages