[Snyk] Security upgrade winston from 2.4.5 to 2.4.6

[snyk-bot]

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

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • package.json
  • package-lock.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Issue	Breaking Change	Exploit Maturity
	Prototype Pollution SNYK-JS-ASYNC-2441827	No	Proof of Concept

Commit messages

Package name: winston

The new version differs by 3 commits.

• d6d620f Merge branch '2.x' of https://github.com/winstonjs/winston into 2.x
• cd7c60b Update version # & changelog
• b17beca Update async to 3.2.3

See the full diff

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

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