chore: Bump swift grammar (#544)

github-actions[bot] · web-flow · commit 25738689077d · 2024-04-14T12:22:52.000-07:00
diff --git a/repos/swift b/repos/swift
@@ -1 +1 @@
-Subproject commit 67ea4e9ea7302b731d392cd8b1aad7b8e79a5547
+Subproject commit e15e9676d5fa35848cb6021c105702b2fd86bc54
