Fix pip-audit (pip, urllib3)

[litteratum]

Linting fails on pip-audit:
Found 3 known vulnerabilities in 2 packages
Name Version ID Fix Versions

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pip 25.1.1 GHSA-4xh5-x5gv-qwph 25.3
urllib3 2.2.3 GHSA-48p4-8xcf-vxj5 2.5.0
urllib3 2.2.3 GHSA-pq67-6m6q-mj2v 2.5.0