[Snyk] Security upgrade socket.io from 2.4.0 to 4.8.0

[Exnadella]

User description

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

Snyk changed the following file(s):

• packages/web-component-tester/package.json
• packages/web-component-tester/package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Denial of Service (DoS) SNYK-JS-WS-7266574	696

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• Max score is 1000. Note that the real score may have changed since the PR was raised.
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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Denial of Service (DoS)

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PR Type

enhancement, bug_fix

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Description

• Upgraded socket.io dependency in package.json from version 2.0.3 to 4.8.0 to address a high severity vulnerability related to Denial of Service (DoS).
• The upgrade aims to reduce vulnerabilities in the project as identified by Snyk.

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Changes walkthrough 📝

	Relevant files
Enhancement	package.json Upgrade socket.io to address vulnerabilities                          packages/web-component-tester/package.json Upgraded socket.io from version 2.0.3 to 4.8.0. +1/-1
Additional files (token-limit)	package-lock.json ...                                                                                                            packages/web-component-tester/package-lock.json ... +11630/-11896

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PR Reviewer Guide 🔍

⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ No key issues to review

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PR Code Suggestions ✨

Category	Suggestion	Score
Best practice	Review major version upgrade changelogs for potential breaking changes Review the changelog for socket.io 4.x to ensure compatibility with your existing code, as this is a major version upgrade from 2.x to 4.x. packages/web-component-tester/package.json [78] +"socket.io": "^4.8.0", - Apply this suggestion Suggestion importance[1-10]: 9 Why: Reviewing the changelog for a major version upgrade is crucial to identify any breaking changes that could affect existing code, ensuring a smooth transition and maintaining functionality.	9
	Update related dependencies when upgrading a major package version Consider updating other dependencies that might be affected by the socket.io upgrade. For example, socket.io-client should typically be updated to match the server version. packages/web-component-tester/package.json [78] "socket.io": "^4.8.0", +"socket.io-client": "^4.8.0", Apply this suggestion Suggestion importance[1-10]: 8 Why: The suggestion to update socket.io-client to match the socket.io version is a good practice to ensure compatibility between the server and client components, especially when upgrading to a major version.	8

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