[Snyk] Security upgrade rubocop-rake from 0.6.0 to 0.7.0

[rmsy]

Snyk has created this PR to fix 6 vulnerabilities in the rubygems dependencies of this project.

Snyk changed the following file(s):

• Gemfile.lock

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Improper Restriction of XML External Entity Reference ('XXE') SNYK-RUBY-REXML-7814166	111
	Uncontrolled Resource Consumption ('Resource Exhaustion') SNYK-RUBY-REXML-7577227	67
	Uncontrolled Resource Consumption SNYK-RUBY-REXML-6861566	49
	Denial of Service (DoS) SNYK-RUBY-REXML-7577228	49
	Regular Expression Denial of Service (ReDoS) SNYK-RUBY-REXML-8309365	49
	Denial of Service (DoS) SNYK-RUBY-REXML-7462086	38

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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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🦉 Uncontrolled Resource Consumption