Don't install amazon.aws from galaxy

We've been using galaxy to install amazon.aws in shippable, but that
doesn't really work if we aren't publising faster. Get that collection
from git so it is most up to date.

tests/utils/shippable/shippable.sh

@@ -87,7 +87,7 @@ git clone https://github.com/ansible-collections/community.general community/gen
 # once community.general is published this will be handled by galaxy cli
 git clone https://github.com/ansible-collections/ansible_collections_google google/cloud
 git clone https://opendev.org/openstack/ansible-collections-openstack openstack/cloud
-ansible-galaxy collection install amazon.aws
+git clone https://github.com/ansible-collections/amazon.aws amazon/aws
 ansible-galaxy collection install ansible.netcommon
 ansible-galaxy collection install community.crypto
 cd "${cwd}"