[CPS] Always build cps from source in k6 jobs

This patch makes two changes:
- Always build cps from source code, so latest docker image is used
- Run plot jobs at the end of the hour, so results are up to date

Issue-ID: CPS-1975
Change-Id: Iee135425f34e1ccf7efc310ed6589e7684d09430
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
diff --git a/jjb/onap/cps/cps-performance-test-jobs.yaml b/jjb/onap/cps/cps-performance-test-jobs.yaml
index a33adda..18fbc12 100644
--- a/jjb/onap/cps/cps-performance-test-jobs.yaml
+++ b/jjb/onap/cps/cps-performance-test-jobs.yaml
@@ -43,8 +43,8 @@
     project: cps
     project-name: cps
 
-    # run 31 minutes past every hour
-    timer: "31 * * * *"
+    # run 58 minutes past every hour
+    timer: "58 * * * *"
 
     jobs:
         - 'onap-{project-name}-performance-tests-plots'
@@ -65,8 +65,8 @@
     project: cps
     project-name: cps
 
-    # run 31 minutes past every hour
-    timer: "31 * * * *"
+    # run 58 minutes past every hour
+    timer: "58 * * * *"
 
     jobs:
         - 'onap-{project-name}-k6-performance-tests-plots'
diff --git a/jjb/onap/cps/k6-performance-tests-trigger.sh b/jjb/onap/cps/k6-performance-tests-trigger.sh
index 4caa4d6..27605dd 100755
--- a/jjb/onap/cps/k6-performance-tests-trigger.sh
+++ b/jjb/onap/cps/k6-performance-tests-trigger.sh
@@ -26,6 +26,7 @@
 rm -rf cps
 git clone https://gerrit.nordix.org/onap/cps
 cd cps
+mvn clean install -DskipTests -Dcheckstyle.skip
 
 # Start the k6 test runner
 chmod 755 ./k6-tests/run-k6-tests.sh