Update dependency pydantic-settings to v2.8.1

Author: renovate[bot]

requirements.txt

@@ -30,7 +30,7 @@ pluggy==1.5.0
 propcache==0.2.1
 pydantic==2.10.6
 pydantic-core==2.27.2
-pydantic-settings==2.7.1
+pydantic-settings==2.8.1
 pytest==8.3.4
 pytest-assertcount==1.0.0
 python-dateutil==2.9.0.post0