core: update simplexmq (fix file reception, optimize subscriptions)

src/Simplex/Chat/Store/SQLite/Migrations/agent_query_plans.txt

@@ -63,9 +63,11 @@ Query:
               SELECT rcv_file_chunk_id, chunk_no, chunk_size, digest, tmp_path
               FROM rcv_file_chunks
               WHERE rcv_file_id = ?
+              ORDER BY chunk_no ASC
             
 Plan:
 SEARCH rcv_file_chunks USING INDEX idx_rcv_file_chunks_rcv_file_id (rcv_file_id=?)
+USE TEMP B-TREE FOR ORDER BY
 
 Query: 
               SELECT snd_file_chunk_id, chunk_no, chunk_offset, chunk_size, digest