[Snyk] Security upgrade @percy/cli-command from 1.28.5 to 1.28.8

[AgnellusX1]

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

Snyk changed the following file(s):

• package.json
• yarn.lock

Note for zero-installs users

If you are using the Yarn feature zero-installs that was introduced in Yarn V2, note that this PR does not update the .yarn/cache/ directory meaning this code cannot be pulled and immediately developed on as one would expect for a zero-install project - you will need to run yarn to update the contents of the ./yarn/cache directory. If you are not using zero-install you can ignore this as your flow should likely be unchanged.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Denial of Service (DoS) SNYK-JS-WS-7266574	696
	Inefficient Regular Expression Complexity SNYK-JS-MICROMATCH-6838728	589

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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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🦉 Inefficient Regular Expression Complexity

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[github-actions[bot]]

This PR was closed because it has been stalled for 28 days with no activity.