fix(deps): bump prop-types from 15.8.0 to 15.8.1 (#1895)

Bumps [prop-types](https://github.com/facebook/prop-types) from 15.8.0 to 15.8.1.
- [Release notes](https://github.com/facebook/prop-types/releases)
- [Changelog](https://github.com/facebook/prop-types/blob/main/CHANGELOG.md)
- [Commits](facebook/prop-types@v15.8.0...v15.8.1)

---
updated-dependencies:
- dependency-name: prop-types
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -92,7 +92,7 @@
   "dependencies": {
     "@emotion/core": "^10.0.27",
     "gatsby-link": "^2.4.2",
-    "prop-types": "15.8.0",
+    "prop-types": "15.8.1",
     "react-simple-icons": "^1.0.0-beta.5",
     "react-use": "^17.0.1",
     "remark-parse": "^10.0.0",