chore: The fixed supported Python version is 3.11

Author: fit2cloud-chenyw

backend/pyproject.toml

@@ -2,9 +2,9 @@
 name = "sqlbot"
 version = "1.0.1"
 description = ""
-requires-python = ">=3.10,<3.13"
+requires-python = "==3.11.*"
 dependencies = [
-    "fastapi[standard]<1.0.0,>=0.114.2",
+    "fastapi[standard]<1.0.0,>=0.115.12",
     "python-multipart<1.0.0,>=0.0.7",
     "passlib[bcrypt]<2.0.0,>=1.7.4",
     "tenacity<9.0.0,>=8.2.3",
@@ -36,7 +36,7 @@ dependencies = [
     "pyyaml (>=6.0.2,<7.0.0)",
     "fastapi-mcp (>=0.3.4,<0.4.0)",
     "tabulate>=0.9.0",
-    "sqlbot-xpack==0.0.3.14",
+    "sqlbot-xpack==0.0.3.15",
     "fastapi-cache2>=0.2.2",
     "sqlparse>=0.5.3",
     "redis>=6.2.0",