Rearrange periodic CI jobs to reduce load on infra

Signed-off-by: smoshiur1237 <moshiur.rahman@est.tech>
Change-Id: Idb8f0bb8050b31a9aa1a6f673d2471cced40c4e1
Signed-off-by: smoshiur1237 <moshiur.rahman@est.tech>
diff --git a/jjb/metal3/projects.yml b/jjb/metal3/projects.yml
index d6a3b0a..6240182 100644
--- a/jjb/metal3/projects.yml
+++ b/jjb/metal3/projects.yml
@@ -269,25 +269,25 @@
             capm3_version: v1beta1
             capm3_release_branch: main
             bmo_release_branch: main
-            schedule: "H 2 * * *"
+            schedule: "H 22 2-30/2 * *" # Runs on even days 10 PM
         - release-1-7:
             capi_version: v1beta1
             capm3_version: v1beta1
             capm3_release_branch: release-1.7
             bmo_release_branch: release-0.6
-            schedule: "H 2 * * *"
+            schedule: "H 3 2-30/2 * *" # Runs on even days 3 AM
         - release-1-6:
             capi_version: v1beta1
             capm3_version: v1beta1
             capm3_release_branch: release-1.6
             bmo_release_branch: release-0.5
-            schedule: "H 8 * * *"
+            schedule: "H 8 2-30/2 * *" # Runs on even days 8 AM
         - release-1-5:
             capi_version: v1beta1
             capm3_version: v1beta1
             capm3_release_branch: release-1.5
             bmo_release_branch: release-0.4
-            schedule: "H 11 * * *"
+            schedule: "H 13 2-30/2 * *" # Runs on even days 1 PM
         exclude:
         - image_os: ubuntu # This is to disable the tests running on ubuntu, to save resources
     - capm3_e2e_clusterctl_upgrade_tests_prow: