deps: bump the dependency-updates group across 1 directory with 3 updates

Bumps the dependency-updates group with 3 updates in the / directory: [gatsby](https://github.com/gatsbyjs/gatsby), [postcss-preset-env](https://github.com/csstools/postcss-plugins/tree/HEAD/plugin-packs/postcss-preset-env) and [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react).


Updates `gatsby` from 5.14.0 to 5.14.1
- [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]@5.14.1)

Updates `postcss-preset-env` from 10.1.2 to 10.1.3
- [Changelog](https://github.com/csstools/postcss-plugins/blob/main/plugin-packs/postcss-preset-env/CHANGELOG.md)
- [Commits](https://github.com/csstools/postcss-plugins/commits/HEAD/plugin-packs/postcss-preset-env)

Updates `eslint-plugin-react` from 7.37.2 to 7.37.3
- [Release notes](https://github.com/jsx-eslint/eslint-plugin-react/releases)
- [Changelog](https://github.com/jsx-eslint/eslint-plugin-react/blob/master/CHANGELOG.md)
- [Commits](jsx-eslint/eslint-plugin-react@v7.37.2...v7.37.3)

---
updated-dependencies:
- dependency-name: gatsby
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependency-updates
- dependency-name: postcss-preset-env
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependency-updates
- dependency-name: eslint-plugin-react
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependency-updates
...

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

Author: dependabot[bot]