### Godot version

v4.0.beta.custom_build [d1e5903c6]

### System information

Arch Linux kernel 6.1.7-arch1-1 x86_64 OpenSSH 9.1p1-3

### Issue description

When using SSH remote deploy, if the extra args field is empty (the default) the ssh command is not executed with success because a single space is inserted in place of the extra args.

```
Creating temporary directory...
Executing: ssh -p 22  davi@192.168.1.50 mktemp -d
Exit code: 255, Output: ssh: Could not resolve hostname : Name or service not known

ssh: Could not resolve hostname : Name or service not known
```

If any valid argument is passed, the command is executed successfully, in the example below I duplicated the `-p 22`, which is ignored, to show that it is not a problem of the hostname passed.

```
Executing: ssh -p 22 -p 22 davi@192.168.1.50 mktemp -d
Exit code: 0, Output: /tmp/tmp.DwFObXBL2s
```

This is infuriating for when you have non-interactive authentication configured in ssh-agent and just the hostname is needed for the connection.
This occurs for both SSH and SCP.

### Steps to reproduce

1. Enable a project to deploy with ssh
2. Fill only the hostname
3. Try to deploy
4. See the error on the console

### Minimal reproduction project

N/A
}
#endif
	args.push_back("sign");
	
#ifdef WINDOWS_ENABLED
	int id_type = p_preset->get("codesign/identity_type");
	if (id_type == 0) { 
		args.push_back("/a");
	} else if (id_type == 1) { 
		if (p_preset->get("codesign/identity") != "") {
			args.push_back("/f");
			args.push_back(p_preset->get("codesign/identity"));
		} else {
			add_message(EXPORT_MESSAGE_WARNING, TTR("Code Signing"), TTR("No identity found."));
			return FAILED;
		}
	} else if (id_type == 2) { 
		if (p_preset->get("codesign/identity") != "") {
			args.push_back("/sha1");
			args.push_back(p_preset->get("codesign/identity"));
		} else {
			add_message(EXPORT_MESSAGE_WARNING, TTR("Code Signing"), TTR("No identity found."));
			return FAILED;
		}
	} else {
		add_message(EXPORT_MESSAGE_WARNING, TTR("Code Signing"), TTR("Invalid identity type."));
		return FAILED;
	}
#else
	if (p_preset->get("codesign/identity") != "") {