- Fixed TestToFloat64() and TestNewNumeric() in arithmetic_test.go to avoid runtime errors
- Fixed TestToFloat64() and TestNewNumeric() in arithmetic_test.go to avoid runtime errors

Signed-off-by: Rasika Kale <91a88734706f0d2c5a3bc888a99419c9de0cca55@planetscale.com>

mahak/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,tinyspeck/vitess,tinyspeck/vitess,tinyspeck/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,tinyspeck/vitess