[Snyk] Security upgrade @microsoft/signalr from 3.1.21 to 7.0.0

[Homer-Mctavish]

Snyk has created this PR to fix 9 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• client/package.json
• client/package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Improper Input Validation SNYK-JS-URLPARSE-2407770	726
	Prototype Poisoning SNYK-JS-QS-3153490	696
	Information Exposure SNYK-JS-EVENTSOURCE-2823375	646
	Prototype Pollution SNYK-JS-JSONSCHEMA-1920922	644
	Access Restriction Bypass SNYK-JS-URLPARSE-2401205	641
	Authorization Bypass SNYK-JS-URLPARSE-2407759	641
	Authorization Bypass Through User-Controlled Key SNYK-JS-URLPARSE-2412697	631
	Open Redirect SNYK-JS-URLPARSE-1533425	586
	Improper Input Validation SNYK-JS-URLPARSE-1078283	479

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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:

🦉 Prototype Pollution
🦉 Improper Input Validation
🦉 Open Redirect