[ bump, docs ] Use fresh upstream lib instead of the buggy one

dependabot[bot] · web-flow · commit 95333b3adc33 · 2025-12-06T11:49:02.000+03:00
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -37,4 +37,4 @@ sphinxcontrib-qthelp==2.0.0
 sphinxcontrib-serializinghtml==2.0.0
 tomli==2.3.0
 typing-extensions==4.15.0
-urllib3==2.5.0
+urllib3==2.6.0
