### Elasticsearch Version

8.1.0-SNAPSHOT (but also affects 7.x releases)

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

OSX

### Problem Description

While the docs state that `RANDOM(null) = null` that's not always the case.

### Steps to Reproduce

```
GET _sql?format=txt
{
  "query": """
  SELECT random(n), n FROM longs
  """
}
```

yields 

```
    random(n)     |       n       
------------------+---------------
0.7308781907032909|1              
0.7311469360199058|2              
0.3860252809814635|null           
```

Expected would be `null` for the last row.

### Logs (if relevant)

_No response_
x-pack/plugin/sql/src/main/java/org/elasticsearch/xpack/sql/expression/function/scalar/math/MathProcessor.java
public enum MathOperation {
        ABS((Object l) -> {
            if (l instanceof Double) {
                return Math.abs(((Double) l).doubleValue());
            }
            if (l instanceof Float) {
                return Math.abs(((Float) l).floatValue());
            }
            if (l instanceof BigInteger) {
                return ((BigInteger) l).abs();
            }
            
            long lo = ((Number) l).longValue();
            if (lo == Long.MIN_VALUE) {
                throw new QlIllegalArgumentException("[" + lo + "] cannot be negated since the result is outside the range");