Bump urllib3 from 1.25.7 to 1.26.5 in /mooclet_engine

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.7 to 1.26.5.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.25.7...1.26.5)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

mooclet_engine/requirements_base.txt

@@ -15,4 +15,4 @@ django-celery-results==1.0.1
 #django-celery-beat
 scipy==1.1.0
 drf-writable-nested==0.5.1
-urllib3==1.25.7
+urllib3==1.26.5

mooclet_engine/requirements_latest_version.txt

@@ -44,7 +44,7 @@ sqlparse==0.3.0
 swagger-ui-bundle==0.0.5
 the==0.1.5
 to==0.3
-urllib3==1.25.6
+urllib3==1.26.5
 vine==1.3.0
 Werkzeug==0.16.0
 psycopg2>=2.8.6,<2.9

mooclet_engine/requirements_local_updated.txt

@@ -47,7 +47,7 @@ sqlparse==0.3.0
 swagger-ui-bundle==0.0.5
 the==0.1.5
 to==0.3
-urllib3==1.25.6
+urllib3==1.26.5
 vine==1.3.0
 Werkzeug==0.16.0
 zipp==0.6.0