fix:(scim-cli) unable to query user resources

[manojs1978]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. /opt/jans/jans-cli/scim-cli.py
2. select 1 for user
3. 1 for query user resource
4. add mendatory fields (start index, count) or also add search filter with username
5. See error

Expected behavior
should get user details

Screenshots
if filtered with username getting below error

if filtered without username getting below error

Desktop (please complete the following information):

• OS: ubuntu
• Browser
• Version 20
• DB : mysql

Smartphone (please complete the following information):

Additional context
Add any other context about the problem here.