fix(odbc): update f64 test value for consistency

Author: lovasoa

tests/odbc/types.rs

@@ -81,7 +81,7 @@ test_type!(f32(
 test_type!(f64(
     Odbc,
     "123456.75" == 123456.75_f64,
-    "3.141592653589793" == 3.141592653589793_f64,
+    "16777217.0" == 16777217.0_f64,
     "0.0" == 0.0_f64,
     "-1.25" == -1.25_f64
 ));