[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 #### Note for [zero-installs](https://yarnpkg.com/features/zero-installs) users If you are using the Yarn feature [zero-installs](https://yarnpkg.com/features/zero-installs) that was introduced in Yarn V2, note that this PR does not update the `.yarn/cache/` directory meaning this code cannot be pulled and immediately developed on as one would expect for a zero-install project - you will need to run `yarn` to update the contents of the `./yarn/cache` directory. If you are not using zero-install you can ignore this as your flow should likely be unchanged. #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:------------------------- ![critical severity](https://res.cloudinary.com/snyk/image/upload/w_20,h_20/v1561977819/icon/c.png "critical severity") | **980/1000**
**Why?** Currently trending on Twitter, Mature exploit, Recently disclosed, Has a fix available, CVSS 9.6 | Heap-based Buffer Overflow
[SNYK-JS-SHARP-5922108](https://snyk.io/vuln/SNYK-JS-SHARP-5922108) | Yes | Mature (*) 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":"44ddf025-2cd3-456a-bc9c-e012156c502c","prPublicId":"44ddf025-2cd3-456a-bc9c-e012156c502c","dependencies":[{"name":"gatsby","from":"4.14.0","to":"5.0.0"},{"name":"gatsby-plugin-manifest","from":"4.1.0","to":"5.10.0"},{"name":"gatsby-plugin-sharp","from":"4.1.0","to":"5.10.0"},{"name":"gatsby-transformer-sharp","from":"4.1.0","to":"5.10.0"},{"name":"sharp","from":"0.30.5","to":"0.32.6"}],"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-5922108"],"upgrade":["SNYK-JS-SHARP-5922108"],"isBreakingChange":true,"env":"prod","prType":"fix","templateVariants":["priorityScore"],"priorityScoreList":[980],"remediationStrategy":"vuln"}) --- **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 #191

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