[skip-ci] Disable cron test on 0.9.1 (#2468)

* update shards deploy method
Signed-off-by: Nzw <zw@milvus.io>

* update run level
Signed-off-by: Nzw <zw@milvus.io>

* try connect set false
Signed-off-by: Nzw <zw@milvus.io>

* update shards deploy branch
Signed-off-by: Nzw <zw@milvus.io>

* add compact case
Signed-off-by: Nzw <zw@milvus.io>

* add #2424 case
Signed-off-by: Nzw <zw@milvus.io>

* add proxy
Signed-off-by: Nzw <zw@milvus.io>

* disable cron test on 0.9.1
Signed-off-by: Nzw <zw@milvus.io>
Co-authored-by: Nzw <zw@milvus.io>

ci/jenkins/Jenkinsfile

 #!/usr/bin/env groovy
 
 String cron_timezone = "TZ=Asia/Shanghai"
-String cron_string = BRANCH_NAME == "0.9.1" ? "38 1 * * * " : ""
+String cron_string = BRANCH_NAME == "master" ? "38 1 * * * " : ""
 
 pipeline {
     agent none