Support for jfrog cloud

Hi,

Thanks a lot for this awesome tool!
I tried running it for our team's jfrog cloud artifactory (ybdb.jfrog.io). But the tool is adding `/storage` in between the url and the repo name.
e.g. if the repo name is `yugabyte` and the url for the repo is `https://ybdb.jfrog.io/artifactory/yugabyte/` then the tool is trying to go the url `https://ybdb.jfrog.io/artifactory/api/storage/yugabyte` which doesn't exist. The error gets thrown is as below.
```
[bmukheja@devserver-bkumar-2 ~]$ artifactory-cleanup --destroy
********************************************************************************
Destroy MODE
Checking 'yugabyte' repository exists.
401 Client Error: for url: https://ybdb.jfrog.io/artifactory/api/storage/yugabyte
The yugabyte repository does not exist!
```
Any help here?