The min function returns whole dictionary instead of timestamp
Solution
Fix first_response_at and add first_response field for more additional metadata.
Although redundant, this is handy for the user who only focuses on first response times and not other additional metadata.
Bug description
Related to https://github.com/thoth-station/mi/blob/85b52496245d1e5a62aeeccd0a2c4c24fd563135/srcopsmetrics/entities/issue.py#L87
The min function returns whole dictionary instead of timestamp
Solution
Fix first_response_at and add first_response field for more additional metadata. Although redundant, this is handy for the user who only focuses on first response times and not other additional metadata.