tests: Add receivedNexthopGroupId to ignored json attributes

For test bgp_redistribute_table there is a function that removes
unwanted json attributes.  Let's add receivedNexthopGroupId to
that list.

Signed-off-by: Donald Sharp <[email protected]>

Author: donaldsharp

tests/topotests/bgp_redistribute_table/test_bgp_redistribute_table.py

@@ -108,6 +108,8 @@ def _router_json_cmp_exact_filter(router, cmd, expected):
                 attr.pop("prefixLen")
             if "asPath" in attr:
                 attr.pop("asPath")
+            if "receivedNexthopGroupId" in attr:
+                attr.pop("receivedNexthopGroupId")
             for nexthop in attr.get("nexthops", []):
                 if "flags" in nexthop:
                     nexthop.pop("flags")