MDEV-25948 fixup: Demote a warning to a note

buf_dblwr_t::recover(): Issue a note, not a warning, about
pages whose FIL_PAGE_LSN is in the future. This was supposed to be
part of commit 762bcb81 (MDEV-25948)
but had been accidentally omitted.

storage/innobase/buf/buf0dblwr.cc

@@ -363,7 +363,7 @@ void buf_dblwr_t::recover()
 
     if (recv_sys.scanned_lsn < lsn)
     {
-      ib::warn() << "Ignoring a doublewrite copy of page " << page_id
+      ib::info() << "Ignoring a doublewrite copy of page " << page_id
                  << " with future log sequence number " << lsn;
       continue;
     }