set durable frame_no upon injection

Author: MarinPostma

libsql-replication/src/replicator.rs

@@ -328,6 +328,10 @@ where
     async fn inject_frame(&mut self, frame: RpcFrame) -> Result<(), Error> {
         self.frames_synced += 1;
 
+        if let Some(frame_no) = frame.durable_frame_no {
+            self.injector.durable_frame_no(frame_no);
+        }
+
         match self.injector.inject_frame(frame).await? {
             Some(commit_fno) => {
                 self.client.commit_frame_no(commit_fno).await?;