```json
{
	"no": ["no"],
	"yes": ["yes"]
}
```

Based on the feature description provided, the feature "ritm_ecg_p_08" has two possible categories: "no" and "yes". 
In this case, the target variable is whether the myocardial infarction complications data of the patient show chronic heart failure. To determine if there is a relationship between the feature and the target, we need to analyze the occurrence of each category of "ritm_ecg_p_08" for each target class.

The analysis reveals that:
- The target class "no" only has the category "no" for the feature "ritm_ecg_p_08".
- The target class "yes" only has the category "yes" for the feature "ritm_ecg_p_08".

Therefore, the dictionary representing the relationship between the feature and the target is as shown above.