[Snyk] Fix for 5 vulnerabilities

[Ch1900]

Snyk has created this PR to fix 5 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
	Deserialization of Untrusted Data SNYK-RUBY-ACTIVESUPPORT-569598	834
	Arbitrary Code Injection SNYK-RUBY-RAKE-552000	686
	Denial of Service (DoS) SNYK-RUBY-JSON-560838	679
	Cross-site Scripting (XSS) SNYK-RUBY-REDCARPET-1059089	629
	Directory Traversal SNYK-RUBY-TZINFO-2958048	589

---

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.

---

Note: You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.

For more information:
🧐 View latest project report
📜 Customise PR templates
🛠 Adjust project settings
📚 Read about Snyk's upgrade logic

---

Learn how to fix vulnerabilities with free interactive lessons:

🦉 Deserialization of Untrusted Data
🦉 Denial of Service (DoS)
🦉 Arbitrary Code Injection
🦉 More lessons are available in Snyk Learn