error copy file to dest: ***, error message: dial tcp *** i/o timeout

I have been using this actions in one of my projects. So far it works fine, but sometimes I get the following error:

```
tar all files into /tmp/979006019/KQmgptshHs.tar
scp file to server.
2021/03/19 12:52:01 error copy file to dest: ***, error message: dial tcp **.**.**.**:***: i/o timeout
drone-scp error: error copy file to dest: ***, error message: dial tcp **.**.**.**:***: i/o timeout
```

No source file, test, or entry point is named. Start by reading the 24-comment thread and tracing the action's SCP/SSH invocation around the reported dial tcp i/o timeout; done means identifying a reproducible cause or a confirmed handling improvement for the intermittent copy failure.

Written by the indexing model from the issue text.