fix: add `emqx_s3` to `reboot_lists.eterm`

Otherwise, it's unconditionally started as a permanent application instead of being
controlled by `emqx_machine`.

```sh
ͳ rg start_boot _build/emqx-enterprise/rel/emqx/releases/5.7.0-g4e6be8a6/start.script | rg emqx_s3
     {apply,{application,start_boot,[emqx_s3,permanent]}},
```

apps/emqx_machine/priv/reboot_lists.eterm

@@ -117,6 +117,7 @@
             emqx_bridge_oracle,
             emqx_bridge_rabbitmq,
             emqx_bridge_azure_event_hub,
+            emqx_s3,
             emqx_bridge_s3,
             emqx_schema_registry,
             emqx_eviction_agent,