CU-869cqb94m: Bump urllib major version to 2. (#384)

Let's see if this works. Dependabot has tried to do this change along with a dozen other ones for months now. But maybe it truly works.

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: mart-r

medcat-model-distributor/webapp/requirements.txt

@@ -2,5 +2,5 @@ Django==3.2.25
 django-dbbackup==4.0.0b0
 django-storages[boto3]==1.12.3
 django-cron==0.5.1
-urllib3==1.26.18
+urllib3==2.6.3
 requests