[Snyk] Fix for 1 vulnerabilities

[Rubix982]

This PR was automatically created by Snyk using the credentials of a real user.

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:
  • docs/Gemfile
• docs/Gemfile.lock

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	551/1000 Why? Recently disclosed, Has a fix available, CVSS 5.3	Uncontrolled Resource Consumption SNYK-RUBY-REXML-6861566	Yes	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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🦉 Uncontrolled Resource Consumption

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[guardrails]

⚠️ We detected 1 security issue in this pull request:

Vulnerable Libraries (1)

Severity	Details
Informational	pkg:gem/github-pages@231 upgrade to: > 231

More info on how to fix Vulnerable Libraries in Ruby.

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