Error after running `dce system deploy` second time

[nathanagood]

Version information

• DCE CLI v0.3.0+
• Mac OS: Darwin 18.7.0 Darwin Kernel Version 18.7.0
• go version go1.13.5 darwin/amd64
• 0.12?

Describe the bug

I can run dce system deploy fine once, but after destroying the infra when I run the command again I get the following error:

reading file in zip archive: file already exists: <HOME>/.dce/.cache/dce/0.23.0/lambda/accounts.zip

To Reproduce

Steps to reproduce the behavior:

1. When I type this Command, I get the following output

   $ dce system deploy

2. Then when I type this other command, I get the following error

   $ cd ~/.dce/.cache/module/
   $ ../terraform/<version>/terraform destroy -auto-approve -no-color
   $ dce system deploy
   'main.tf' already exists and --use-cached specified; using existing file
   Initializing
   Creating DCE infrastructure
   Retrieving artifacts location
   Artifacts bucket =  <some bucket>
   Deploying code assets to DCE infrastructure
   Downloading DCE code assets
   reading file in zip archive: file already exists: ~/.dce/.cache/dce/0.23.0/lambda/accounts.zip

Expected behavior

Additional context

Workaround: remove the ~/.dce/.cache directory