[Snyk] Security upgrade idna from 2.7 to 3.7

[stevemac007]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `pip` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • requirements.txt

⚠️ Warning

zappa 0.20.2 has requirement boto3==1.4.0, but you have boto3 1.4.5.
zappa 0.20.2 has requirement tqdm==4.8.3, but you have tqdm 4.11.2.
zappa 0.20.2 has requirement Werkzeug==0.11.10, but you have Werkzeug 0.15.5.
zappa 0.20.2 has requirement wheel==0.29.0, but you have wheel 0.42.0.
requests 2.20.0 has requirement urllib3<1.25,>=1.21.1, but you have urllib3 2.0.7.
requests 2.20.0 has requirement idna<2.8,>=2.5, but you have idna 3.7.
Jinja2 2.11.3 requires MarkupSafe, which is not installed.
boto3 1.4.5 has requirement botocore<1.6.0,>=1.5.0, but you have botocore 1.4.42.
boto3 1.4.5 has requirement s3transfer<0.2.0,>=0.1.10, but you have s3transfer 0.1.1.

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	596/1000 Why? Recently disclosed, Has a fix available, CVSS 6.2	Resource Exhaustion SNYK-PYTHON-IDNA-6597975	idna: 2.7 -> 3.7	No	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the affected dependencies could be upgraded.

Check the changes in this PR to ensure they won't cause issues with your project.

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