feat: add support for import attributes

grammar.js

@@ -192,6 +192,7 @@ module.exports = grammar({
         seq($.import_clause, $._from_clause),
         field('source', $.string),
       ),
+      optional($.import_attribute),
       $._semicolon,
     ),
 
@@ -234,6 +235,8 @@ module.exports = grammar({
       ),
     ),
 
+    import_attribute: $ => seq('with', $.object),
+
     //
     // Statements
     //

test/corpus/statements.txt

@@ -70,6 +70,7 @@ import defaultMember, { member1, member2 as alias2 } from "module-name";
 import defaultMember, * as name from "module-name";
 import "module-name";
 import { member1 , member2 as alias2, } from "module-name";
+import pkg from "./package.json" with { type: "json" };
 import("a");
 import("a").then((m) => {});
 import.meta.url;
@@ -157,6 +158,10 @@ import { b } from
           (identifier))))
     (string
       (string_fragment)))
+  (import_statement
+    (import_clause (identifier)) (string (string_fragment))
+    (import_attribute (object
+      (pair (property_identifier) (string (string_fragment))))))
   (expression_statement
     (call_expression
       (import)

test/highlight/imports.js

@@ -0,0 +1,4 @@
+import pkg from "./package.json" with { type: "json" };
+// <- keyword
+//               ^ string
+//                               ^ keyword