[Snyk] Security upgrade mistune from 0.8.4 to 2.0.3

[EngHabu]

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:
  • plugins/flytekit-greatexpectations/requirements.txt

⚠️ Warning

protoc-gen-swagger 0.1.0 requires protobuf, which is not installed.
flyteidl 1.0.1 requires protobuf, which is not installed.
flyteidl 1.0.1 requires googleapis-common-protos, which is not installed.
docker-image-py 0.1.12 requires regex, which is not installed.

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	551/1000 Why? Recently disclosed, Has a fix available, CVSS 5.3	Regular Expression Denial of Service (ReDoS) SNYK-PYTHON-MISTUNE-2940625	mistune: 0.8.4 -> 2.0.3	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 effected dependencies could be upgraded.

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

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.67%. Comparing base (a968a5a) to head (5e62dbd).
Report is 1019 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1090   +/-   ##
=======================================
  Coverage   86.67%   86.67%           
=======================================
  Files         269      269           
  Lines       25074    25074           
  Branches     2826     2826           
=======================================
  Hits        21734    21734           
  Misses       2871     2871           
  Partials      469      469           

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