Update dependency httptools to v0.6.4

Author: renovate[bot]

requirements.txt

@@ -26,7 +26,7 @@ fastapi-cli==0.0.4
 fastjsonschema==2.21.1
 h11==0.14.0
 httpcore==1.0.5
-httptools==0.6.1
+httptools==0.6.4
 httpx==0.27.0
 idna==3.7
 imageio==2.34.1