[Snyk] Security upgrade webpack from 2.2.1 to 5.0.0

[ayoinc]

Snyk has created this PR to fix 1 vulnerabilities in the yarn dependencies of this project.

Snyk changed the following file(s):

• play-with-docker/Portus/package.json

Note for zero-installs users

If you are using the Yarn feature zero-installs that was introduced in Yarn V2, note that this PR does not update the .yarn/cache/ directory meaning this code cannot be pulled and immediately developed on as one would expect for a zero-install project - you will need to run yarn to update the contents of the ./yarn/cache directory.
If you are not using zero-install you can ignore this as your flow should likely be unchanged.

⚠️ Warning

Failed to update the yarn.lock, please update manually before merging.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Improper Verification of Cryptographic Signature SNYK-JS-ELLIPTIC-8187303	786

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Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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[ayoinc]

🎉 Snyk checks have passed. No issues have been found so far.

✅ security/snyk check is complete. No issues have been found. (View Details)

[Copilot]

Pull Request Overview

This PR upgrades webpack from version 2.2.1 to 5.0.0 to address a critical security vulnerability (SNYK-JS-ELLIPTIC-8187303) with a score of 786 related to improper verification of cryptographic signatures in the elliptic dependency.

• Upgrades webpack dependency from ^2.2.1 to ^5.0.0
• Addresses critical security vulnerability in elliptic cryptographic library
• Note: This is a major version upgrade that may introduce breaking changes

[Copilot]

This is a major version upgrade from webpack 2.2.1 to 5.0.0, which introduces significant breaking changes. The webpack configuration, loaders, and plugins will likely need updates. Consider reviewing the webpack migration guide and testing thoroughly before merging.