[FAB-4451] Fix timing issues on e2e_cli
[FAB-4451] Fix timing issues on e2e_cli

e2e_cli was occasionally failing due to timing issue.
Adding a small delay in between resolves the issue.

Change-Id: Ie682ac355bf342c0cabb22337216c055f7744bc8
Signed-off-by: Krishna Harsha Voora <39037931d5364b55382d1093a097563039feb771@in.ibm.com>

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