c/m_manager: logging error applying members command to state machine

Added log entry informing user about an issue that occurred when a
command was applied to the `members_table`

Signed-off-by: Michał Maślanka <michal@redpanda.com>

src/v/cluster/members_manager.cc

@@ -922,6 +922,14 @@ ss::future<std::error_code> members_manager::dispatch_updates_to_cores(
       "expected result: {}, have: {}",
       error,
       results);
+    if (error) {
+        vlog(
+          clusterlog.warn,
+          "error applying command with type {} at offset {} - {}",
+          Cmd::type,
+          update_offset,
+          error.message());
+    }
 
     co_return error;
 }