Add `wget` to [`microsoft/CromwellOnAzure/src/deploy-cromwell-on-azure/samples/docker-dockerfile`](https://github.com/microsoft/CromwellOnAzure/blob/main/src/deploy-cromwell-on-azure/samples/docker-dockerfile)

[Matt McLoughlin]

Add wget to microsoft/CromwellOnAzure/src/deploy-cromwell-on-azure/samples/docker-dockerfile

Originally posted by @BMurri in microsoft/ga4gh-tes#386 (comment)

[Blair L Murri]

This is now obsolete due to microsoft/ga4gh-tes#527