SonarQube deployment fails

[Sonar Azure SQL](https://github.com/Azure/azure-quickstart-templates/tree/master/sonarqube-azuresql)

### Issue Details

The deployment fails with the following error -

"ResourceDeploymentFailure",
"message": "The resource operation completed with terminal provisioning state 'Failed'.",
"details": [
{
"code": "VMExtensionProvisioningError",
"message": "VM has reported a failure when processing extension 'configureAppVM_DSC'. Error message: \"DSC Configuration 'Main' completed with error(s). Following are the first few: PowerShell DSC resource Grani_Download failed to execute Set-TargetResource functionality with error message: Status Code returns '401'. Stop download stream from URI : 'https://sonarsource.bintray.com/Distribution/sonarqube/sonarqube-6.7.4.zip' The SendConfigurationApply function did not succeed.\"."

Start by inspecting the Sonar Azure SQL template linked in the issue, especially the configureAppVM_DSC extension and its download of sonarqube-6.7.4.zip. Reproduce the deployment and trace the 401 response from the SonarSource Bintray URI; done means the template deploys without the VM extension or DSC failure.

Written by the indexing model from the issue text.