S3 speed issues on M1 stacks

Uploading to Amazon S3 from an M1 stack on Bitrise can be quite slow.

We recommend trying to use the Minio CLI instead of the standard AWS CLI. Use the following script to install and set it up:

# Install minio cli
brew install minio/stable/mc

# create an "alias" to use `mc` when the user calls `aws s3`. 
echo 'aws() { if [[ $1 == "s3" ]]; then command mc "${@:2}";  else command aws "$@"; fi; }' >> ~/.zshrc

# re-source zshrc, so the alias becomes active
source ~/.zshrc