Remove hardcoded nodes for package checkers

Reworked test
Update pillar for nodes with rsync, with octavia
Removed rule for gnocchi and ujson because they should exist on all ctl* nodes
Added optimized call of the test.ping request for nodes

Fixes-Bug: #PROD-36531

Change-Id: I3512a8f159e40cfaa70dc5e6ab3673e5eb70ed64
diff --git a/test_set/cvp-sanity/fixtures/base.py b/test_set/cvp-sanity/fixtures/base.py
index bd62ed4..aabf8d1 100644
--- a/test_set/cvp-sanity/fixtures/base.py
+++ b/test_set/cvp-sanity/fixtures/base.py
@@ -25,7 +25,8 @@
 
 @pytest.fixture(scope='session')
 def local_salt_client():
-    return utils.init_salt_client()
+    pytest.local_salt_client = utils.init_salt_client()
+    return pytest.local_salt_client
 
 
 nodes = utils.calculate_groups()