s3transfer slimPatterns version conflict

[pjhartzell]

With cirrus-geo 0.10.0 installed, seeing [ERROR] ImportError: cannot import name 'is_s3express_bucket' from 'botocore.utils' (/var/runtime/botocore/utils.py).

Need to add

  - "s3transfer/**"
  - "s3transfer-*/**"

to the default slimPatterns or otherwise modify the default slimPatterns.

[ircwaves]

Based on the collision here, the move of ripping out the boto* stack, because a version exists in the lambda environment can become problematic.

Proposal: yank these patterns out of the default cirrus.yml, and lambdas which can safely and reasonably take advantage of the slimPatterns feature can use them.