### Description

The parsing of params in parameterized ES|QL queries appears to be inconsistent with the parsing of non-parameterized ES|QL queries. Some examples on current main:

- ```
  {"query": "row a = 1 | eval x = now() + ?", "params": [{"type":"time_duration", "value":"5 hour"}]}
  ```
  results in the following exception:
  ```
  "type":"parsing_exception","reason":"line 1:23: Cannot cast value [5 hour] of type [KEYWORD] to parameter type [TIME_DURATION]"}],"type":"parsing_exception","reason":"line 1:23: Cannot cast value [5 hour] of type [KEYWORD] to parameter type [TIME_DURATION]"
  ```
- ```
  {"query": "row a = 1 | eval x = now() + ?", "params": ["1 week"]}
  ```
  results in
  ```
  "type":"verification_exception","reason":"Found 1 problem\nline 1:22: [+] has arguments with incompatible types [DATETIME] and [KEYWORD]"
  ```
- ```
  "query": "row a = 1 | eval x = now() + ? week", "params": [1]
  ```
  results in
  ```
  "type":"parsing_exception","reason":"line 1:32: extraneous input 'week' expecting <EOF>"}],"type":"parsing_exception","reason":"line 1:32: extraneous input 'week' expecting <EOF>"
  ```

All the queries work fine if the `?` is manually substituted with the given parameter.

The first two indicate that the parsing of query parameters is not consistent with our normal parsing, type resolution and verification pipeline.

According to @astefan , `version` is affected in a similar way.

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/parser/ExpressionBuilder.java
return new Literal(source, param.value, dataType);
        }
        
        try {
            if (DataTypeConverter.canConvert(sourceType, dataType) == false) {
                throw new ParsingException(
                    source,
                    "Cannot cast value [{}] of type [{}] to parameter type [{}]",
                    param.value,
                    sourceType,
                    dataType
                );
            }
            return new Literal(source, DataTypeConverter.converterFor(sourceType, dataType).convert(param.value), dataType);
        } catch (QlIllegalArgumentException ex) {
            throw new ParsingException(ex, source, "Unexpected actual parameter type [{}] for type [{}]", sourceType, param.type);
        }
    }
    private TypedParamValue param(TerminalNode node) {
        if (node == null) {
            return null;
        }
        Token token = node.getSymbol();
        if (params.containsKey(token) == false) {
            throw new ParsingException(source(node), "Unexpected parameter");
        }
        return params.get(token);
    }
}