### Description

For a query with params like `"params": [{"x": 1}, {"y": 2}]` running in a JVM with assertions disabled results in:

```
  "error": {
    "root_cause": [
      {
        "type": "x_content_parse_exception",
        "reason": "Failed to build [params] after last required field arrived"
      }
    ],
    "type": "x_content_parse_exception",
    "reason": "[3:19] [esql/query] failed to parse field [params]",
    "caused_by": {
      "type": "x_content_parse_exception",
      "reason": "Failed to build [params] after last required field arrived",
      "caused_by": {
        "type": "array_index_out_of_bounds_exception",
        "reason": "Index 1 out of bounds for length 0"
      }
    }
  }
```

but with assertions enabled:

```
[2023-09-07T13:03:21,434][ERROR][o.e.b.ElasticsearchUncaughtExceptionHandler] [runTask-0] fatal error in thread [Thread-2], exiting java.lang.AssertionError: [params] must configure at least one constructor argument. If it doesn't have any it should use ObjectParser instead of ConstructingObjectParser. This is a bug in the parser declaration.
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ConstructingObjectParser$Target.finish(ConstructingObjectParser.java:543)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ConstructingObjectParser.parse(ConstructingObjectParser.java:166)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ConstructingObjectParser.apply(ConstructingObjectParser.java:158)
┬╗      at org.elasticsearch.xpack.esql.action.EsqlQueryRequest.parseParams(EsqlQueryRequest.java:181)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.AbstractObjectParser.lambda$declareField$0(AbstractObjectParser.java:174)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ObjectParser.lambda$declareField$10(ObjectParser.java:431)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ObjectParser.parseValue(ObjectParser.java:609)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ObjectParser.parseArray(ObjectParser.java:604)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ObjectParser.parseSub(ObjectParser.java:643)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ObjectParser.parse(ObjectParser.java:315)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ObjectParser.parse(ObjectParser.java:259)
┬╗      at org.elasticsearch.xcontent@8.11.0-SNAPSHOT/org.elasticsearch.xcontent.ObjectParser.apply(ObjectParser.java:382)
┬╗      at org.elasticsearch.xpack.esql.action.EsqlQueryRequest.fromXContent(EsqlQueryRequest.java:144)
┬╗      at org.elasticsearch.xpack.esql.action.RestEsqlQueryAction.prepareRequest(RestEsqlQueryAction.java:45)
```
x-pack/plugin/esql/qa/server/src/main/java/org/elasticsearch/xpack/esql/qa/rest/RestEsqlTestCase.java
Map.of("name", "_id", "type", "keyword")
        );
        var values = List.of(List.of(3, testIndexName() + "-2", 1, "id-2"), List.of(2, testIndexName() + "-1", 2, "id-1"));
        assertMap(result, matchesMap().entry("columns", columns).entry("values", values));
    }
    private static String expectedTextBody(String format, int count, @Nullable Character csvDelimiter) {
        StringBuilder sb = new StringBuilder();
        switch (format) {
            case "txt" -> {
                sb.append("    keyword    |    integer    \n");
                sb.append("---------------+---------------\n");
            }
            case "csv" -> sb.append("keyword").append(csvDelimiter).append("integer\r\n");
            case "tsv" -> sb.append("keyword\tinteger\n");
            default -> {
                assert false : "unexpected format type [" + format + "]";
            }
        }
        for (int i = 0; i < count; i++) {
            sb.append("keyword").append(i);
            int iLen = String.valueOf(i).length();
            switch (format) {
                case "txt" -> sb.append(" ".repeat(8 - iLen)).append("|");
                case "csv" -> sb.append(csvDelimiter);
                case "tsv" -> sb.append('\t');
            }
            sb.append(i);
            if (format.equals("txt")) {
                sb.append(" ".repeat(15 - iLen));
            }