### 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/test/java/org/elasticsearch/xpack/esql/parser/StatementParserTests.java
assertEquals(statement("explain [ explain [ from a ] | where b == 1 ]"), statement("explain[explain[from a]|where b==1]"));
    }
    public void testBlockComments() {
        String query = " explain [ from foo ] | limit 10 ";
        LogicalPlan expected = statement(query);
        int wsIndex = query.indexOf(' ');
        do {
            String queryWithComment = query.substring(0, wsIndex)
                + "/*explain [ \nfrom bar ] | where a > b*/"
                + query.substring(wsIndex + 1);
            assertEquals(expected, statement(queryWithComment));
            wsIndex = query.indexOf(' ', wsIndex + 1);
        } while (wsIndex >= 0);
    }
    public void testSingleLineComments() {
        String query = " explain [ from foo ] | limit 10 ";
        LogicalPlan expected = statement(query);
        int wsIndex = query.indexOf(' ');
        do {
            String queryWithComment = query.substring(0, wsIndex)
                + "//explain [ from bar ] | where a > b \n"
                + query.substring(wsIndex + 1);
            assertEquals(expected, statement(queryWithComment));
            wsIndex = query.indexOf(' ', wsIndex + 1);
        } while (wsIndex >= 0);
    }
    public void testNewLines() {
        String[] delims = new String[] { "", "\r", "\n", "\r\n" };
        Function<String, String> queryFun = d -> d + "from " + d + " foo " + d + "| eval " + d + " x = concat(bar, \"baz\")" + d;
        LogicalPlan reference = statement(queryFun.apply(delims[0]));