[ES|QL] Update grammars (#196046)

This PR updates the ES|QL grammars (lexer and parser) to match the
latest version in Elasticsearch.

---------

Co-authored-by: Stratoula Kalafateli <[email protected]>
(cherry picked from commit bed5c4e)

packages/kbn-esql-ast/src/antlr/esql_lexer.g4

@@ -68,7 +68,6 @@ FROM : 'from'                 -> pushMode(FROM_MODE);
 GROK : 'grok'                 -> pushMode(EXPRESSION_MODE);
 KEEP : 'keep'                 -> pushMode(PROJECT_MODE);
 LIMIT : 'limit'               -> pushMode(EXPRESSION_MODE);
-META : 'meta'                 -> pushMode(META_MODE);
 MV_EXPAND : 'mv_expand'       -> pushMode(MVEXPAND_MODE);
 RENAME : 'rename'             -> pushMode(RENAME_MODE);
 ROW : 'row'                   -> pushMode(EXPRESSION_MODE);
@@ -309,6 +308,8 @@ mode PROJECT_MODE;
 PROJECT_PIPE : PIPE -> type(PIPE), popMode;
 PROJECT_DOT: DOT -> type(DOT);
 PROJECT_COMMA : COMMA -> type(COMMA);
+PROJECT_PARAM : PARAM -> type(PARAM);
+PROJECT_NAMED_OR_POSITIONAL_PARAM : NAMED_OR_POSITIONAL_PARAM -> type(NAMED_OR_POSITIONAL_PARAM);
 
 fragment UNQUOTED_ID_BODY_WITH_PATTERN
     : (LETTER | DIGIT | UNDERSCORE | ASTERISK)
@@ -342,6 +343,8 @@ RENAME_PIPE : PIPE -> type(PIPE), popMode;
 RENAME_ASSIGN : ASSIGN -> type(ASSIGN);
 RENAME_COMMA : COMMA -> type(COMMA);
 RENAME_DOT: DOT -> type(DOT);
+RENAME_PARAM : PARAM -> type(PARAM);
+RENAME_NAMED_OR_POSITIONAL_PARAM : NAMED_OR_POSITIONAL_PARAM -> type(NAMED_OR_POSITIONAL_PARAM);
 
 AS : 'as';
 
@@ -413,6 +416,9 @@ ENRICH_FIELD_QUOTED_IDENTIFIER
     : QUOTED_IDENTIFIER -> type(QUOTED_IDENTIFIER)
     ;
 
+ENRICH_FIELD_PARAM : PARAM -> type(PARAM);
+ENRICH_FIELD_NAMED_OR_POSITIONAL_PARAM : NAMED_OR_POSITIONAL_PARAM -> type(NAMED_OR_POSITIONAL_PARAM);
+
 ENRICH_FIELD_LINE_COMMENT
     : LINE_COMMENT -> channel(HIDDEN)
     ;
@@ -428,6 +434,8 @@ ENRICH_FIELD_WS
 mode MVEXPAND_MODE;
 MVEXPAND_PIPE : PIPE -> type(PIPE), popMode;
 MVEXPAND_DOT: DOT -> type(DOT);
+MVEXPAND_PARAM : PARAM -> type(PARAM);
+MVEXPAND_NAMED_OR_POSITIONAL_PARAM : NAMED_OR_POSITIONAL_PARAM -> type(NAMED_OR_POSITIONAL_PARAM);
 
 MVEXPAND_QUOTED_IDENTIFIER
     : QUOTED_IDENTIFIER -> type(QUOTED_IDENTIFIER)
@@ -469,26 +477,6 @@ SHOW_WS
     : WS -> channel(HIDDEN)
     ;
 
-//
-// META commands
-//
-mode META_MODE;
-META_PIPE : PIPE -> type(PIPE), popMode;
-
-FUNCTIONS : 'functions';
-
-META_LINE_COMMENT
-    : LINE_COMMENT -> channel(HIDDEN)
-    ;
-
-META_MULTILINE_COMMENT
-    : MULTILINE_COMMENT -> channel(HIDDEN)
-    ;
-
-META_WS
-    : WS -> channel(HIDDEN)
-    ;
-
 mode SETTING_MODE;
 SETTING_CLOSING_BRACKET : CLOSING_BRACKET -> type(CLOSING_BRACKET), popMode;