Set default value of parse_float_as_decimal to true

### Is your feature request related to a problem or challenge?

According to the ANSI SQL specification, floating point numbers in SQL should be interpreted as decimals. We currently interpret them as floats:

```
pub struct SqlParserOptions {
/// When set to true, SQL parser will parse float as decimal type
pub parse_float_as_decimal: bool, default = false
```

### Describe the solution you'd like

Set default to true and fix regressions in test suite. This will likely involve fixing some bugs in type coercion such as https://github.com/apache/datafusion/issues/14272

### Describe alternatives you've considered

_No response_

### Additional context

_No response_