deps: bump urllib3 dependency

[matthewelwell]

Changes

Bumps urllib3 dependency to resolve vulnerability.

How did you test this code?

n/a - minor version bump

[vercel]

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3 Skipped Deployments

Project	Deployment	Review	Updated (UTC)
docs	Ignored		Dec 19, 2025 11:14am
flagsmith-frontend-preview	Ignored		Dec 19, 2025 11:14am
flagsmith-frontend-staging	Ignored		Dec 19, 2025 11:14am

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-e2e:pr-6435	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-frontend:pr-6435	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-api-test:pr-6435	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-6435	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-6435	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-6435	Finished ✅	Results ✅

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.06%. Comparing base (d5fbcd7) to head (e1ce51a).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6435   +/-   ##
=======================================
  Coverage   98.06%   98.06%           
=======================================
  Files        1292     1292           
  Lines       46509    46509           
=======================================
  Hits        45611    45611           
  Misses        898      898           

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