Reduce clusterctl upgrade periodic test frequency

Signed-off-by: Huy Mai <huy.mai@est.tech>
Change-Id: Ide98295774a9efbe1a0a9c82842ea4d2c9e4730a
diff --git a/jjb/metal3/job_capm3_periodic_e2e_clusterctl_upgrade_tests_prow.yml b/jjb/metal3/job_capm3_periodic_e2e_clusterctl_upgrade_tests_prow.yml
index cf3fa94..ad874a1 100644
--- a/jjb/metal3/job_capm3_periodic_e2e_clusterctl_upgrade_tests_prow.yml
+++ b/jjb/metal3/job_capm3_periodic_e2e_clusterctl_upgrade_tests_prow.yml
@@ -101,7 +101,7 @@
         artifact-num-to-keep: -1
 
     triggers:
-      - timed: "H 1 1-31/2 * *" # Runs on odd days 1 AM
+      - timed: '{schedule}'
 
     pipeline-scm:
       scm:
diff --git a/jjb/metal3/projects.yml b/jjb/metal3/projects.yml
index 7d278b6..596f12e 100644
--- a/jjb/metal3/projects.yml
+++ b/jjb/metal3/projects.yml
@@ -322,15 +322,19 @@
         - main:
             capm3_release_branch: main
             bmo_release_branch: main
+            schedule: "H 1 * * TUE,THU,SAT"
         - release-1-7:
             capm3_release_branch: release-1.7
             bmo_release_branch: release-0.6
+            schedule: "H 1 * * MON"
         - release-1-6:
             capm3_release_branch: release-1.6
             bmo_release_branch: release-0.5
+            schedule: "H 1 * * WED"
         - release-1-5:
             capm3_release_branch: release-1.5
             bmo_release_branch: release-0.4
+            schedule: "H 1 * * FRI"
         exclude:
         - image_os: centos
     - capm3_periodic_e2e_k8s_upgrade_tests_prow: