[Snyk] Security upgrade sanitize from 4.6.2 to 7.0.0

[RyanPHigh]

Snyk has created this PR to fix 10 vulnerabilities in the rubygems dependencies of this project.

Snyk changed the following file(s):

• test/acceptance/workspaces/ruby-app-policy/Gemfile

⚠️ Warning

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

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Heap-based Buffer Overflow SNYK-RUBY-NOKOGIRI-7164639	696
	Improper Handling of Unexpected Data Type SNYK-RUBY-NOKOGIRI-2840634	624
	Use After Free SNYK-RUBY-NOKOGIRI-2413994	619
	XML External Entity (XXE) Injection SNYK-RUBY-NOKOGIRI-1726792	589
	Regular Expression Denial of Service (ReDoS) SNYK-RUBY-NOKOGIRI-2620374	589
	Out-of-bounds Write SNYK-RUBY-NOKOGIRI-2630623	589
	Denial of Service (DoS) SNYK-RUBY-NOKOGIRI-2630898	589
	NULL Pointer Dereference SNYK-RUBY-NOKOGIRI-3052880	589
	Use After Free SNYK-RUBY-NOKOGIRI-6228056	524
	Cross-site Scripting (XSS) SNYK-RUBY-NOKOGIRI-8453714	319

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• 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.
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🦉 XML External Entity (XXE) Injection
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