[Snyk] Fix for 3 vulnerabilities

[snyk-io]

Snyk has created this PR to fix 3 vulnerabilities in the rubygems dependencies of this project.

Snyk changed the following file(s):

• Gemfile

⚠️ Warning

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

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13378928	125
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13378930	125
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13378932	125

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🦉 Allocation of Resources Without Limits or Throttling

[snyk-io]

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