fix silence matchers

matrix_alertbot/alertmanager.py

@@ -52,14 +52,17 @@ class AlertmanagerClient:
 
         self._match_alert(alert, matchers)
 
-        labels = alert["labels"]
+        silence_matchers = [
+            {"name": label, "value": value, "isRegex": False, "isEqual": True}
+            for label, value in alert["labels"].items()
+        ]
         start_time = datetime.now()
         duration_seconds = pytimeparse2.parse(duration)
         duration_delta = timedelta(seconds=duration_seconds)
         end_time = start_time + duration_delta
 
         silence = {
-            "matchers": labels,
+            "matchers": silence_matchers,
             "startsAt": start_time.isoformat(),
             "endsAt": end_time.isoformat(),
             "createdBy": user,