build(deps): bump gatsby from 5.13.6 to 5.13.7

Bumps [gatsby](https://github.com/gatsbyjs/gatsby) from 5.13.6 to 5.13.7.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/compare/[email protected]@5.13.7)

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

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

package.json

@@ -21,7 +21,7 @@
     "test": "cypress run --config baseUrl=${CYPRESS_BASE_URL:-'http://localhost:8000'}"
   },
   "dependencies": {
-    "gatsby": "5.13.6",
+    "gatsby": "5.13.7",
     "gatsby-plugin-react-svg": "3.3.0",
     "gatsby-plugin-sass": "6.13.1",
     "gatsby-plugin-sitemap": "6.13.1",