Spliting centos scenario job into 2 jobs

The duration of the c9s scenario job is really close to the max timeout
in Zuul, spliting it into 2 jobs would reduce the duration of the tests
and would avoid possible timeouts.

Change-Id: I3b70171624e5c42fd6055d73a040704af5910944
diff --git a/zuul.d/projects.yaml b/zuul.d/projects.yaml
index 116da49..78d30b4 100644
--- a/zuul.d/projects.yaml
+++ b/zuul.d/projects.yaml
@@ -25,7 +25,9 @@
             voting: false
         - octavia-v2-dsvm-scenario-centos-8-stream:
             voting: false
-        - octavia-v2-dsvm-scenario-centos-9-stream:
+        - octavia-v2-dsvm-scenario-centos-9-stream-traffic-ops:
+            voting: false
+        - octavia-v2-dsvm-scenario-centos-9-stream-non-traffic-ops:
             voting: false
         - octavia-v2-act-stdby-dsvm-scenario-two-node:
             voting: false