tests: skip more excluded plugin tests

Check and skip VPP_EXCLUDED_PLUGINS tests for most of plugins.

Type: improvement
Signed-off-by: Dmitry Valter <d-valter@yandex-team.com>
Change-Id: I23fd3666729251c639aa8da72a676058e3f5bb4e
diff --git a/test/test_nat64.py b/test/test_nat64.py
index c327965..a28d725 100644
--- a/test/test_nat64.py
+++ b/test/test_nat64.py
@@ -36,10 +36,12 @@
 from syslog_rfc5424_parser.constants import SyslogSeverity
 from util import ppc, ppp
 from vpp_papi import VppEnum
+from config import config
 
 
 @tag_fixme_vpp_workers
 @tag_fixme_ubuntu2204
+@unittest.skipIf("nat" in config.excluded_plugins, "Exclude NAT plugin tests")
 class TestNAT64(VppTestCase):
     """NAT64 Test Cases"""