### 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
ent_f->store_line("<true/>");
					}
					if ((int)p_preset->get("codesign/entitlements/app_sandbox/files_pictures") == 2) {
						ent_f->store_line("<key>com.apple.security.files.pictures.read-write</key>");
						ent_f->store_line("<true/>");
					}
					if ((int)p_preset->get("codesign/entitlements/app_sandbox/files_music") == 1) {
						ent_f->store_line("<key>com.apple.security.files.music.read-only</key>");
						ent_f->store_line("<true/>");
					}
					if ((int)p_preset->get("codesign/entitlements/app_sandbox/files_music") == 2) {
						ent_f->store_line("<key>com.apple.security.files.music.read-write</key>");
						ent_f->store_line("<true/>");
					}
					if ((int)p_preset->get("codesign/entitlements/app_sandbox/files_movies") == 1) {
						ent_f->store_line("<key>com.apple.security.files.movies.read-only</key>");
						ent_f->store_line("<true/>");
					}
					if ((int)p_preset->get("codesign/entitlements/app_sandbox/files_movies") == 2) {
						ent_f->store_line("<key>com.apple.security.files.movies.read-write</key>");
						ent_f->store_line("<true/>");
					}
				}
				ent_f->store_line("</dict>");
				ent_f->store_line("</plist>");
			} else {
				add_message(EXPORT_MESSAGE_ERROR, TTR("Code Signing"), TTR("Could not create entitlements file."));
				err = ERR_CANT_CREATE;
			}
			if ((err == OK) && helpers.size() > 0) {