fix(config.jinja): fix `salt-lint` errors
fix(config.jinja): fix `salt-lint` errors

```bash
Examining fail2ban/ng/files/config.jinja of type state
[206] Jinja variables should have spaces before and after: {{ var_name }}
fail2ban/ng/files/config.jinja:13
[{{section}}]
```

saltstack-formulas/fail2ban-formula,saltstack-formulas/fail2ban-formula,saltstack-formulas/fail2ban-formula