[TCID-DIR-OP-UPGRADE-CSTOR-POOL]: Upgrade cstor pool via director

[amitbhatt818]

What this PR does / why we need it:

• Upgrade cstor pool via director.

Details:

Steps involved in openebs update in cluster:

• Pre-checks:

  • Check whether all the openebs components are in running state or not.
  • DOP should be installed

• Steps involved in the test case

  • Create pool using director
  • Invoke API to upgrade pools to latest version

Expected output:

• Negative test case
• pool should get upgraded to latest version.

Additional Information-

Title	Description
Assumptions	openebs should be already installed
Dop Installed
Application Under Test	[TCID-DIR-OP-UPGRADE-CSTOR-POOL]: Upgrade cstor pool via director
Stogare Engine
Application Used
Openebs Version	1.12.0

*Notes to reviewer