Since Jan 26, the Sentry API has started failing from a missing key `issue["metadata"]["type"]`

```

1. cki/cki_tools/service_metrics/metrics/sentry.py in update_project_issues at line 99

1. Only get issues which have occurred in the last 24 hours.
   issues = self._apis[instance_url].get_project_issues(project['id'], stats_period='24h')
   for issue in issues:
2. The issue['title'] is truncated; this way we get the whole thing.
   title = f' {issue["metadata"]["type"]}

   :

   {issue["metadata"]["value"]}

   '
   counter = self.metric_sentry_issue_event_count.labels(
   ```

Jira: CKI-6525