Add mininet chart to list of charts that trigger a SiaB test

Change-Id: I1f774aaf53118b382944edf9739753cd5c622fd8
diff --git a/jjb/defaults.yaml b/jjb/defaults.yaml
index 0d96475..b311eb6 100644
--- a/jjb/defaults.yaml
+++ b/jjb/defaults.yaml
@@ -129,7 +129,7 @@
     sonar-java-binaries: ''
 
     # siab helm-charts
-    siab-projects-regexp: '^(xos-core/.*|xos-profiles/seba-services/.*|xos-profiles/base-kubernetes/.*|workflows/att-workflow/.*|voltha/.*|onos/.*)$'
+    siab-projects-regexp: '^(xos-core/.*|xos-profiles/seba-services/.*|xos-profiles/base-kubernetes/.*|workflows/att-workflow/.*|voltha/.*|onos/.*|mininet/.*)$'
 
     # Optionally allow JUnit results to be empty when test framework is set up,
     # but no tests exist. Default behavior is to fail when test results are empty.