Merge branch '18-kawabuhi-support-insert-into-paren-query' into 'main'

INSERT-SELECTのSELECTが括弧で囲まれている場合に対応

Closes m-novikov#18

See merge request oss-incubate/rust-sql-formatter/tree-sitter-sql!23

Author: future-yamada2915

grammar.js

@@ -874,7 +874,7 @@ module.exports = grammar({
         kw("INTO"),
         $._aliasable_identifier,
         optional(seq("(", commaSep1($._identifier), ")")),
-        choice($.values_clause, $.select_statement, $.set_clause),
+        choice($.values_clause, $.select_statement, $.select_subexpression, $.set_clause),
         optional($.on_conflict_clause),
         optional($.returning_clause),
       ),

src/grammar.json

@@ -9903,6 +9903,10 @@
               "type": "SYMBOL",
               "name": "select_statement"
             },
+            {
+              "type": "SYMBOL",
+              "name": "select_subexpression"
+            },
             {
               "type": "SYMBOL",
               "name": "set_clause"

src/node-types.json

@@ -4938,6 +4938,10 @@
           "type": "select_statement",
           "named": true
         },
+        {
+          "type": "select_subexpression",
+          "named": true
+        },
         {
           "type": "set_clause",
           "named": true