metal3: Fix cron syntax

Signed-off-by: Huy Mai <huy.mai@est.tech>
Change-Id: I0554a4413620d222f2ef34b13b18b8918484611a
diff --git a/jjb/metal3/projects.yml b/jjb/metal3/projects.yml
index f190b6b..e3283b7 100644
--- a/jjb/metal3/projects.yml
+++ b/jjb/metal3/projects.yml
@@ -246,19 +246,19 @@
         - main:
             capm3_release_branch: main
             bmo_release_branch: main
-            schedule: "H 1 * * TUE,THU,SAT"
+            schedule: "H 1 * * 2,4,6"
         - release-1-7:
             capm3_release_branch: release-1.7
             bmo_release_branch: release-0.6
-            schedule: "H 1 * * MON"
+            schedule: "H 1 * * 1"
         - release-1-6:
             capm3_release_branch: release-1.6
             bmo_release_branch: release-0.5
-            schedule: "H 1 * * WED"
+            schedule: "H 1 * * 3"
         - release-1-5:
             capm3_release_branch: release-1.5
             bmo_release_branch: release-0.4
-            schedule: "H 1 * * FRI"
+            schedule: "H 1 * * 5"
         exclude:
         - image_os: centos
     - capm3_periodic_e2e_k8s_upgrade_tests_prow:
@@ -270,7 +270,7 @@
             capm3_release_branch: main
             bmo_release_branch: main
             capm3_target_branch: main
-            schedule: "H 4 * * MON"
+            schedule: "H 4 * * 1"
         - 1-28-1-29:
             k8s_version_upgrade_from: v1.28.1
             k8s_version_upgrade_to: v1.29.0
@@ -278,7 +278,7 @@
             capm3_release_branch: main
             bmo_release_branch: main
             capm3_target_branch: main
-            schedule: "H 4 * * THU"
+            schedule: "H 4 * * 4"
         - 1-27-1-28:
             k8s_version_upgrade_from: v1.27.4
             k8s_version_upgrade_to: v1.28.1
@@ -286,7 +286,7 @@
             capm3_release_branch: main
             bmo_release_branch: main
             capm3_target_branch: main
-            schedule: "H 4 * * FRI"
+            schedule: "H 4 * * 5"
         - 1-29-1-30:
             k8s_version_upgrade_from: v1.29.0
             k8s_version_upgrade_to: v1.30.0
@@ -294,7 +294,7 @@
             capm3_release_branch: release-1.7
             bmo_release_branch: release-0.6
             capm3_target_branch: release-1-7
-            schedule: "H 4 * * TUE"
+            schedule: "H 4 * * 2"
         - 1-28-1-29:
             k8s_version_upgrade_from: v1.28.1
             k8s_version_upgrade_to: v1.29.0
@@ -302,7 +302,7 @@
             capm3_release_branch: release-1.6
             bmo_release_branch: release-0.5
             capm3_target_branch: release-1-6
-            schedule: "H 4 * * WED"
+            schedule: "H 4 * * 3"
         - 1-26-1-27:
             k8s_version_upgrade_from: v1.26.4
             k8s_version_upgrade_to: v1.27.4
@@ -310,7 +310,7 @@
             capm3_release_branch: release-1.5
             bmo_release_branch: release-0.4
             capm3_target_branch: release-1-5
-            schedule: "H 4 * * SAT"
+            schedule: "H 4 * * 6"
         exclude:
         - image_os: centos
     - capm3_periodic_e2e_ephemeral_tests: