[Snyk] Security upgrade html-proofer from 3.19.2 to 3.19.2

[jbrown-xentity]

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: - Gemfile - Gemfile.lock #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **619/1000**
**Why?** Has a fix available, CVSS 8.1 | Use After Free
[SNYK-RUBY-NOKOGIRI-2413994](https://snyk.io/vuln/SNYK-RUBY-NOKOGIRI-2413994) | No | No Known Exploit  | **589/1000**
**Why?** Has a fix available, CVSS 7.5 | Regular Expression Denial of Service (ReDoS)
[SNYK-RUBY-NOKOGIRI-2620374](https://snyk.io/vuln/SNYK-RUBY-NOKOGIRI-2620374) | No | No Known Exploit  | **589/1000**
**Why?** Has a fix available, CVSS 7.5 | Out-of-bounds Write
[SNYK-RUBY-NOKOGIRI-2630623](https://snyk.io/vuln/SNYK-RUBY-NOKOGIRI-2630623) | No | No Known Exploit  | **589/1000**
**Why?** Has a fix available, CVSS 7.5 | Denial of Service (DoS)
[SNYK-RUBY-NOKOGIRI-2630898](https://snyk.io/vuln/SNYK-RUBY-NOKOGIRI-2630898) | No | No Known Exploit  | **624/1000**
**Why?** Has a fix available, CVSS 8.2 | Improper Handling of Unexpected Data Type
[SNYK-RUBY-NOKOGIRI-2840634](https://snyk.io/vuln/SNYK-RUBY-NOKOGIRI-2840634) | 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. ------------ **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](https://app.snyk.io/org/data.gov/project/375b1bdd-8b26-4a61-a566-08e9079b68da?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/data.gov/project/375b1bdd-8b26-4a61-a566-08e9079b68da?utm_source=github&utm_medium=referral&page=fix-pr/settings) 📚 [Read more about Snyk's upgrade and patch logic](https://support.snyk.io/hc/en-us/articles/360003891078-Snyk-patches-to-fix-vulnerabilities) [//]: # (snyk:metadata:{"prId":"aa78c995-593f-4d9a-937c-c5010ef9c214","prPublicId":"aa78c995-593f-4d9a-937c-c5010ef9c214","dependencies":[{"name":"html-proofer","from":"3.19.2","to":"3.19.2"}],"packageManager":"rubygems","projectPublicId":"375b1bdd-8b26-4a61-a566-08e9079b68da","projectUrl":"https://app.snyk.io/org/data.gov/project/375b1bdd-8b26-4a61-a566-08e9079b68da?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-RUBY-NOKOGIRI-2840634","SNYK-RUBY-NOKOGIRI-2630898","SNYK-RUBY-NOKOGIRI-2630623","SNYK-RUBY-NOKOGIRI-2620374","SNYK-RUBY-NOKOGIRI-2413994"],"upgrade":["SNYK-RUBY-NOKOGIRI-2413994","SNYK-RUBY-NOKOGIRI-2620374","SNYK-RUBY-NOKOGIRI-2630623","SNYK-RUBY-NOKOGIRI-2630898","SNYK-RUBY-NOKOGIRI-2840634"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["updated-fix-title","priorityScore"],"priorityScoreList":[624,589,589,589,619]}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Denial of Service (DoS)](https://learn.snyk.io/lessons/redos/javascript/?loc=fix-pr) 🦉 [Regular Expression Denial of Service (ReDoS)](https://learn.snyk.io/lessons/redos/javascript/?loc=fix-pr)

[FuhuXia]

done in https://github.com/GSA/data-strategy/pull/293