Upgrade k8s version to the latest one

Signed-off-by: ChrsMark <[email protected]>

Author: ChrsMark

.ci/Jenkinsfile

@@ -12,7 +12,7 @@ pipeline {
     AWS_ACCOUNT_SECRET = 'secret/observability-team/ci/elastic-observability-aws-account-auth'
     HOME = "${env.WORKSPACE}"
     KIND_VERSION = 'v0.11.1'
-    K8S_VERSION = 'v1.20.2'
+    K8S_VERSION = 'v1.23.0'
     JOB_GCS_BUCKET = 'beats-ci-temp'
     JOB_GCS_CREDENTIALS = 'beats-ci-gcs-plugin'
     JOB_GCS_EXT_CREDENTIALS = 'beats-ci-gcs-plugin-file-credentials'