[Snyk] Security upgrade @openzeppelin/contracts from 4.8.1 to 4.9.6

[adamlaska]

Snyk has created this PR to fix 8 vulnerabilities in the yarn dependencies of this project.

Snyk changed the following file(s):

• package.json

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.

⚠️ Warning

Failed to update the yarn.lock, please update manually before merging.

Vulnerabilities that will be fixed with an upgrade:

	Issue
	Incorrect Calculation SNYK-JS-OPENZEPPELINCONTRACTS-3339525
	Incorrect Calculation SNYK-JS-OPENZEPPELINCONTRACTS-3339527
	Improper Input Validation SNYK-JS-OPENZEPPELINCONTRACTS-5425051
	Denial of Service (DoS) SNYK-JS-OPENZEPPELINCONTRACTS-5425827
	Missing Authorization SNYK-JS-OPENZEPPELINCONTRACTS-5672116
	Improper Input Validation SNYK-JS-OPENZEPPELINCONTRACTS-5711902
	Improper Encoding or Escaping of Output SNYK-JS-OPENZEPPELINCONTRACTS-5838352
	Out-of-bounds Read SNYK-JS-OPENZEPPELINCONTRACTS-6346765

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Improper Input Validation
🦉 Denial of Service (DoS)
🦉 Missing Authorization

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[github-actions]

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