Typo on SOL002/VNFIndicator-API/Subscriptions.robot

The folder jsons is referred as json in the Subscriptions.robot file. The test fails with the following error: FileNotFoundError: [Errno 2] No such file or directory: 'testsuites/VNFIndicator-API/json/subscriptions.json'

Edited Feb 21, 2019 by Giacomo Bernini

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