Set internal message ID to nextId after handling pending messages (#9463)

* Set internal message ID to nextId after handling pending messages

* add change file

* update bundle

* update reference.md

---------

Co-authored-by: Lucas Nogueira <[email protected]>

Author: GCRev

.changes/fix-channel-buffer-processing.md

@@ -0,0 +1,5 @@
+---
+"@tauri-apps/api": patch:bug
+---
+
+Fixes a bug when processing channel messages out of order.