Update dependency urllib3 to v2 [SECURITY]

Author: renovate[bot]

py.requirements/docs.txt

@@ -44,7 +44,7 @@ furo >= 2024.04.27; python_version >= '3.8'
 sphinx-copybutton >= 0.5.2; python_version >= '3.7'
 
 # -- NEEDED FOR: RTD (as temporary fix)
-urllib3 < 2.0.0; python_version < '3.8'
+urllib3 <2.6.3; python_version < '3.8'
 
 # -- SUPPORT: sphinx-doc translations (prepared)
 sphinx-intl >= 0.9.11