Adding environmentvariables required to run Schema and WKS service integration tests

Adding the required environment variables to run integration tests of Schema and WKS service. Refer the following README files to see the list of variables required by respective services: Schema: https://community.opengroup.org/osdu/platform/system/schema-service/-/tree/master/provider/schema-azure#running-automated-integration-tests

WKS: https://community.opengroup.org/osdu/platform/data-flow/enrichment/wks/-/blob/master/testing/wks-test-core/Readme.md#wks-azure-integration-tests

cc: @osdu/platform/roles/azure-contributors , @harshit283