ALEInfo missing fixers when using alias

## Information

VIM - Vi IMproved 9.0

Operating System:
Arch Linux

## What went wrong

This is in my .vimrc.
```sh
let g:ale_linter_aliases = {"PKGBUILD": "sh"}
```

When opening a PKGBUILD file the command `ALEInfo` shows the following.
```sh
Current Filetype: PKGBUILD
Available Linters: ['bashate', 'cspell', 'language_server', 'shell', 'shellcheck']
Enabled Linters: ['shell', 'shellcheck']
Ignored Linters: []
Suggested Fixers:
'remove_trailing_lines' - Remove all blank lines at the end of a file.
'trim_whitespace' - Remove all trailing whitespace characters at the end of every line.
Linter Variables:
Global Variables:
```

The fixers from type "sh" are missing.