fix(amplify-provider-awscloudformation): fix test

[cjihrig]

Description of changes

This test was failing locally because the output contains colors that are not present in the assertion logic.

Issue #, if available

N/A

Description of how you validated changes

Ran the test locally.

Checklist

• PR description included
• yarn test passes
• Tests are changed or added

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #6955 (298759b) into master (40bce69) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #6955   +/-   ##
=======================================
  Coverage   56.23%   56.23%           
=======================================
  Files         444      444           
  Lines       21707    21707           
  Branches     4344     4344           
=======================================
  Hits        12206    12206           
  Misses       8686     8686           
  Partials      815      815           

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