[Snyk] Fix for 3 vulnerabilities

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `rubygems` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • Gemfile
  • Gemfile.lock

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	616/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.9	Web Cache Poisoning SNYK-RUBY-RACK-1061917	Yes	Proof of Concept
	611/1000 Why? Recently disclosed, Has a fix available, CVSS 6.5	Cross-site Scripting (XSS) SNYK-RUBY-RAILS-5291540	No	No Known Exploit
	551/1000 Why? Recently disclosed, Has a fix available, CVSS 5.3	Regular Expression Denial of Service (ReDoS) SNYK-RUBY-URI-5291533	No	No Known Exploit

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

Check the changes in this PR to ensure they won't cause issues with your project.

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🦉 Cross-site Scripting (XSS) 🦉 Regular Expression Denial of Service (ReDoS)