Fix flukyness of test_physical_and_logical_replicaiton.py (#10176)

## Problem

See #10037
test_physical_and_logical_replication.py sometimes failed.

## Summary of changes

Add `wait_replica_caughtup` to wait for replica sync

Co-authored-by: Konstantin Knizhnik <knizhnik@neon.tech>

test_runner/regress/test_physical_and_logical_replicaiton.py

@@ -2,7 +2,7 @@
 
 import time
 
-from fixtures.neon_fixtures import NeonEnv, logical_replication_sync
+from fixtures.neon_fixtures import NeonEnv, logical_replication_sync, wait_replica_caughtup
 
 
 def test_physical_and_logical_replication_slot_not_copied(neon_simple_env: NeonEnv, vanilla_pg):
@@ -38,6 +38,8 @@ def test_physical_and_logical_replication_slot_not_copied(neon_simple_env: NeonE
     for pk in range(n_records):
         p_cur.execute("insert into t (pk) values (%s)", (pk,))
 
+    wait_replica_caughtup(primary, secondary)
+
     s_cur.execute("select count(*) from t")
     assert s_cur.fetchall()[0][0] == n_records