build(deps): bump gatsby-plugin-netlify from 5.1.0 to 5.1.1

Bumps [gatsby-plugin-netlify](https://github.com/netlify/gatsby-plugin-netlify) from 5.1.0 to 5.1.1.
- [Release notes](https://github.com/netlify/gatsby-plugin-netlify/releases)
- [Changelog](https://github.com/netlify/gatsby-plugin-netlify/blob/main/CHANGELOG.md)
- [Commits](netlify/gatsby-plugin-netlify@v5.1.0...v5.1.1)

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

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