[Snyk] Fix for 7 vulnerabilities

[MManke188]

Snyk has created this PR to fix 7 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	721
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13378930	721
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13378932	721
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13535097	721
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13052974	696
	Information Exposure SNYK-RUBY-RACK-13524628	631
	Regular Expression Denial of Service (ReDoS) SNYK-RUBY-REXML-13110060	631

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Allocation of Resources Without Limits or Throttling
🦉 Regular Expression Denial of Service (ReDoS)

[Copilot]

Pull Request Overview

This PR addresses security vulnerabilities by upgrading Ruby gem dependencies to safer versions. Snyk identified 7 vulnerabilities (5 high-severity, 2 medium-severity) related to resource allocation issues and denial of service attacks in the Rack and REXML libraries.

• Updates middleman gem from ~> 4.4 to ~> 4.6, >= 4.6.0
• Updates middleman-syntax gem from ~> 3.2 to ~> 3.3, >= 3.3.0

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