[Snyk] Upgrade canvas from 2.7.0 to 2.9.0

[snyk-bot]

Snyk has created this PR to upgrade canvas from 2.7.0 to 2.9.0.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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• The recommended version is 2 versions ahead of your current version.
• The recommended version was released 22 days ago, on 2022-01-17.

The recommended version fixes:

Severity	Issue	PriorityScore (*)	Exploit Maturity
	Regular Expression Denial of Service (ReDoS) SNYK-JS-ANSIREGEX-1583908	482/1000 Why? Proof of Concept exploit, CVSS 7.5	Proof of Concept
	Arbitrary File Overwrite SNYK-JS-TAR-1536528	482/1000 Why? Proof of Concept exploit, CVSS 7.5	No Known Exploit
	Arbitrary File Overwrite SNYK-JS-TAR-1536531	482/1000 Why? Proof of Concept exploit, CVSS 7.5	No Known Exploit
	Arbitrary File Write SNYK-JS-TAR-1579147	482/1000 Why? Proof of Concept exploit, CVSS 7.5	No Known Exploit
	Arbitrary File Write SNYK-JS-TAR-1579152	482/1000 Why? Proof of Concept exploit, CVSS 7.5	No Known Exploit
	Arbitrary File Write SNYK-JS-TAR-1579155	482/1000 Why? Proof of Concept exploit, CVSS 7.5	No Known Exploit
	Regular Expression Denial of Service (ReDoS) SNYK-JS-TAR-1536758	482/1000 Why? Proof of Concept exploit, CVSS 7.5	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

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