[Snyk] Security upgrade wait-on from 7.2.0 to 8.0.2

[alexmolev]

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

Snyk changed the following file(s):

• backend/package.json
• backend/package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Cross-site Scripting (XSS) SNYK-JS-AXIOS-6671926	479

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