feat(deps): update dependency fastapi to v0.115.6

Author: renovate[bot]

requirements.txt

@@ -2,7 +2,7 @@ annotated-types==0.7.0
 anyio==4.6.2.post1
 certifi==2024.8.30
 creyPY==1.2.5
-fastapi==0.115.5
+fastapi==0.115.6
 fastapi-pagination==0.12.31
 h11==0.14.0
 httpcore==1.0.6