[dc] Slow down retry in Azure Collect

it seems the exiting retries keep erroring after 10 * 3 second retries, so error condition seems likely correlated with time. retrying for 5 minutes seems like the appropriate max

src/connectors/azure_collect.py

@@ -1411,7 +1411,7 @@ def load_table(kind, **params):
                 f=lambda: GET(kind, params, cred=cred),
                 E=(requests.exceptions.SSLError, requests.exceptions.ConnectionError),
                 n=10,
-                sleep_seconds_btw_retry=3,
+                sleep_seconds_btw_retry=30,
             )
             kind = 'connection' if kind == 'subscriptions' else kind
             table_name = f'{table_prefix}_{kind}'