Bump gatsby-remark-images from 7.12.0 to 7.13.1 (#983)

Bumps [gatsby-remark-images](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-remark-images) from 7.12.0 to 7.13.1.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-remark-images/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-remark-images@7.13.1/packages/gatsby-remark-images)

---
updated-dependencies:
- dependency-name: gatsby-remark-images
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -38,7 +38,7 @@
     "gatsby-remark-autolink-headers": "^6.13.1",
     "gatsby-remark-code-titles": "^1.1.0",
     "gatsby-remark-copy-linked-files": "^6.13.1",
-    "gatsby-remark-images": "^7.12.0",
+    "gatsby-remark-images": "^7.13.1",
     "gatsby-remark-prismjs": "^7.13.1",
     "gatsby-remark-smartypants": "^6.13.1",
     "gatsby-source-filesystem": "^5.12.0",