Azure: Removing SUBSCRIBER_SECRET variable from helm charts

This PR is removing the SUBSCRIBER_SECRET variable from helm charts and defining it in application.properties

This environment variable is only required for integration tests and takes a random string as value and not any infrastructure secret so defining it in properties file should not be an issue

Note: Please do not set automatic merge for this MR

changed the description

FYI @kibattul @polavishnu

changed title from Azure: Removing SUBSCRIBER_SECRET variable form helm charts to Azure: Removing SUBSCRIBER_SECRET variable from helm charts

approved this merge request

resolved all threads

mentioned in merge request osdu/platform/deployment-and-operations/infra-azure-provisioning!131 (merged)

merged

mentioned in commit c219e75f

FYI @danielscholl

mentioned in commit 9b6eaa9c

added Azure label

changed milestone to %M1 - Release 0.1