Bumps [sprockets-rails](https://github.com/rails/sprockets-rails) from 3.2.1 to 3.2.2.
- [Release notes](https://github.com/rails/sprockets-rails/releases)
- [Commits](https://github.com/rails/sprockets-rails/compare/v3.2.1...v3.2.2

)

Signed-off-by: dependabot[bot] <support@github.com>

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