##### SUMMARY
`esc_period` is mandatory even with `state: absent` - should be optional in that case.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
zabbix_action

##### ANSIBLE VERSION
latest

##### CONFIGURATION
Not relevant.

##### OS / ENVIRONMENT
Not relevant.

##### STEPS TO REPRODUCE
```yaml
  - name: "Report problems to Zabbix administrators"
    event_source: 'trigger'
    state: absent
```

##### EXPECTED RESULTS
Action, if exists, is removed.

##### ACTUAL RESULTS
```paste below
"msg": "missing required arguments: esc_period"
```
"""Construct operator
        Args:
            _condition: condition to construct
        Returns:
            str: constructed operator
        """
        try:
            return to_numeric_value([
                "=",
                "<>",
                "like",
                "not like",
                "in",
                ">=",
                "<=",
                "not in",
                "matches",
                "does not match",
                "Yes",
                "No"], _condition['operator']
            )
        except Exception as e:
            self._module.fail_json(msg="Unsupported value '%s' for operator." % _condition['operator'])
    def _construct_value(self, conditiontype, value):