[Snyk] Security upgrade @iobroker/testing from 4.1.3 to 5.0.0

[Grizzelbee]

Snyk has created this PR to fix 2 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json
• package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Regular Expression Denial of Service (ReDoS) SNYK-JS-PATHTOREGEXP-7925106	738
	Cross-site Scripting (XSS) SNYK-JS-SERIALIZEJAVASCRIPT-6147607	626

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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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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Regular Expression Denial of Service (ReDoS) 🦉 Cross-site Scripting (XSS)