textproc/meilisearch: Fix build with rust 1.92.0

error:
error: this function depends on never type fallback being ()

--> index-scheduler/src/batch.rs:631:5
 |

631 | #[tracing::instrument(level = "trace", skip(self, batch), target = "indexing::scheduler", fields(batch=batch.to_string()))]

PR: 291582, 291685
Approved by: portmgr (build fix blanket)