deps: update dependency testcontainers to v4.14.2 (#4329)

Author: renovate-bot

samples/python/django/requirements.txt

@@ -3,5 +3,5 @@ pytz==2026.1.post1
 Django==5.2.13
 google==3.0.0
 google.auth==2.49.2
-testcontainers==4.14.1
+testcontainers==4.14.2
 requests==2.33.1