CLOUD-802 - Add the possibility to specify "latest" as Kubernetes ver…

…sion when running the Jenkins pipelines (#2277)

cloud/jenkins/pgo-operator-eks-latest.yml

@@ -0,0 +1,16 @@
+- job:
+    name: pgo-operator-eks
+    project-type: pipeline
+    description: |
+        Do not edit this job through the web!
+    triggers:
+      - timed: "0 15 * * 0"
+    pipeline-scm:
+      scm:
+        - git:
+            url: https://github.com/Percona-Lab/jenkins-pipelines.git
+            branches:
+            - 'master'
+            wipe-workspace: false
+      lightweight-checkout: true
+      script-path: cloud/jenkins/pgo_operator_eks.groovy

cloud/jenkins/pgo-operator-gke-latest.yml

@@ -11,7 +11,7 @@
         artifact-days-to-keep: -1
         artifact-num-to-keep: 10
     triggers:
-      - timed: "0 0 * * 3"
+      - timed: "0 15 * * 0"
     pipeline-scm:
       scm:
         - git:
@@ -39,7 +39,7 @@
         default: sergey.pronin
         description: Slack user to notify on failures
     - string:
-        name: PGO_OPERATOR_IMAGE
+        name: OPERATOR_IMAGE
         default:
         description: Operator image
     - string: