[Snyk] Fix for 1 vulnerabilities

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 `yarn` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - package.json - yarn.lock #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:------------------------- ![medium severity](https://res.cloudinary.com/snyk/image/upload/w_20,h_20/v1561977819/icon/m.png "medium severity") | **611/1000**
**Why?** Recently disclosed, Has a fix available, CVSS 6.5 | Remote Code Execution (RCE)
[SNYK-JS-SHARP-2848109](https://snyk.io/vuln/SNYK-JS-SHARP-2848109) | 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/thatcrazyirishguy/project/03293576-d8f5-4649-bb09-dbbff6a1088b?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/thatcrazyirishguy/project/03293576-d8f5-4649-bb09-dbbff6a1088b?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":"4e8f9a90-647e-484a-b9fc-0d62d3905a7d","prPublicId":"4e8f9a90-647e-484a-b9fc-0d62d3905a7d","dependencies":[{"name":"gatsby-plugin-manifest","from":"4.1.0","to":"4.8.0"},{"name":"gatsby-plugin-sharp","from":"4.1.0","to":"4.8.0"},{"name":"gatsby-transformer-sharp","from":"4.1.0","to":"4.8.0"},{"name":"sharp","from":"0.29.2","to":"0.30.5"}],"packageManager":"yarn","projectPublicId":"03293576-d8f5-4649-bb09-dbbff6a1088b","projectUrl":"https://app.snyk.io/org/thatcrazyirishguy/project/03293576-d8f5-4649-bb09-dbbff6a1088b?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-JS-SHARP-2848109"],"upgrade":["SNYK-JS-SHARP-2848109"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["priorityScore"],"priorityScoreList":[611]}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Learn about vulnerability in an interactive lesson of Snyk Learn.](https://learn.snyk.io?loc=fix-pr)

darrenbritton / darrenbritton.github.io

[Snyk] Fix for 1 vulnerabilities #155

Snyk has created this PR to fix one or more vulnerable packages in the `yarn` dependencies of this project.