MT#17801 Increase timeout for subscriber REST/API

Otherwise we have an error on PRO trunk:
> Failures:
> curl --insecure -L http://127.0.0.1:1443/login/subscriber: exit-status:
> Error: Command execution timed out (10s)
> curl --insecure -L http://127.0.0.1:1443/login/subscriber: stdout:
> Error: Command execution timed out (10s)

Change-Id: I17b3015d2bfb9ef9d7e8b9e2e1ce86a7a907bdaf

ce/10_sites_ok.json.tt2

@@ -89,14 +89,16 @@
             "stdout": [
                 "/Subscriber Sign In/"
             ],
-            "stderr": []
+            "stderr": [],
+            "timeout": 30000
         },
         "curl --insecure -L https://[% web_ext_ips.0 -%]:1443/login/subscriber": {
             "exit-status": 0,
             "stdout": [
                 "/Subscriber Sign In/"
             ],
-            "stderr": []
+            "stderr": [],
+            "timeout": 30000
         },
 
         "curl --insecure -L http://[% web_int_ips.0 -%]:1443/api/": {