Bump eslint-plugin-prettier from 4.0.0 to 4.2.1 in /js (#174)

Bumps [eslint-plugin-prettier](https://github.com/prettier/eslint-plugin-prettier) from 4.0.0 to 4.2.1.
- [Release notes](https://github.com/prettier/eslint-plugin-prettier/releases)
- [Changelog](https://github.com/prettier/eslint-plugin-prettier/blob/master/CHANGELOG.md)
- [Commits](prettier/eslint-plugin-prettier@v4.0.0...v4.2.1)

---
updated-dependencies:
- dependency-name: eslint-plugin-prettier
  dependency-type: direct:development
  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>
Co-authored-by: Carlos Rodriguez <carlos@interchain.io>

js/yarn.lock

@@ -845,8 +845,8 @@ eslint-plugin-import@^2.25.4:
     tsconfig-paths "^3.12.0"
 
 eslint-plugin-prettier@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-4.0.0.tgz"
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-4.2.1.tgz#651cbb88b1dab98bfd42f017a12fa6b2d993f94b"
   dependencies:
     prettier-linter-helpers "^1.0.0"