Bump vendor/github.com/rails/sprockets from e4686d5 to 37b8468 (#112

)

Bumps [vendor/github.com/rails/sprockets](https://github.com/rails/sprockets) from `e4686d5` to `37b8468`.
- [Release notes](https://github.com/rails/sprockets/releases)
- [Commits](rails/sprockets@e4686d5...37b8468)

---
updated-dependencies:
- dependency-name: vendor/github.com/rails/sprockets
  dependency-type: direct:production
...

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