Upgrade / Move blockaws container to IT-SRE docker repo

[kfferrando]

We need to get a copy of this image into the IT-SRE docker hub repository, and also upgrade the underlying pod OS, etc.

sumo-infra/k8s/install/services/block-aws/block-aws-cron.yaml

Line 48 in 1963466

image: quay.io/mozmar/blockaws:673f9b0

[kfferrando]

Here's the code:
https://github.com/mozmeao/infra/tree/master/k8s/tools/block-aws

Also, get these container builds into travis-ci

[kfferrando]

Note, this will fail if there is a trailing whitespace on the DMS_URL

https://github.com/mozmeao/infra/blob/bd965224e340b81303258a4bf6cc002c90e994be/k8s/tools/block-aws/block_aws.py#L93

[ziegeer]

Image moved in #45. Base OS not yet upgraded.