Bump vim/bundle/ale from 3220b94 to 48d73c8

Bumps [vim/bundle/ale](https://github.com/w0rp/ale) from `3220b94` to `48d73c8`.
- [Release notes](https://github.com/w0rp/ale/releases)
- [Commits](dense-analysis/ale@3220b94...48d73c8)

---
updated-dependencies:
- dependency-name: vim/bundle/ale
  dependency-type: direct:production
...

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