[Snyk] Security upgrade webrick from 1.4.2 to 1.8.2

[ekmixon]

Snyk has created this PR to fix 1 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
	HTTP Request Smuggling SNYK-RUBY-WEBRICK-8068535	658

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[sourcery-ai]

We have skipped reviewing this pull request. It seems to have been created by a bot ('[Snyk]' found in title). We assume it knows what it's doing!