Adding alert for broken wallet sweep (#3395)

Signed-off-by: Julien Tinguely <julien.tinguely@digitalasset.com>

Author: julientinguely-da

cluster/deployment/mock/config.yaml

@@ -181,6 +181,9 @@ svs:
       bigQuery:
         dataset: mock_da2_scan
         prefix: da2
+    validatorApp:
+      sweep:
+        fromEnv: SV1
   sv-da-1: # non "sv-X" key => additional SV that is always deployed (key == node name == k8s namespace)
     publicName: Digital-Asset-1
     subdomain: sv-1