[Snyk] Security upgrade express from 4.21.0 to 4.22.0

[omercnet]

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

Snyk changed the following file(s):

• examples/es6/package.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Allocation of Resources Without Limits or Throttling SNYK-JS-QS-14724253	828

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Pull request overview

This PR is an automated Snyk security fix that attempts to upgrade the Express dependency from 4.21.0 to 4.22.0 in the ES6 example project to address vulnerability SNYK-JS-QS-14724253 (Allocation of Resources Without Limits or Throttling).

Key Changes:

• Updates the express package version from ^4.21.0 to ^4.22.0 in the ES6 example dependencies

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