Prebuilt Buildifier Not Working As Expected

I'm hitting into some problems when trying to get prebuilt Buildifier (via bazel) working with the vscode extension. I am using the latest version of Prebuilt Buildifier ([7.3.1](https://github.com/keith/buildifier-prebuilt/releases/tag/7.3.1)).

## Bazel Setup

```
# Workspace
http_archive(
name = "buildifier_prebuilt",
sha256 = "7f85b688a4b558e2d9099340cfb510ba7179f829454fba842370bccffb67d6cc",
strip_prefix = "buildifier-prebuilt-7.3.1",
urls = [
"http://github.com/keith/buildifier-prebuilt/archive/7.3.1.tar.gz",
],
)

load("@buildifier_prebuilt//:deps.bzl", "buildifier_prebuilt_deps")

buildifier_prebuilt_deps()

load("@buildifier_prebuilt//:defs.bzl", "buildifier_prebuilt_register_toolchains")

buildifier_prebuilt_register_toolchains()
```

```
./BUILD.bazel
load("@buildifier_prebuilt//:rules.bzl", "buildifier")

buildifier(
name = "buildifier",
)
```

## Vscode Setup:
```
{
"bazel.buildifierExecutable": "@buildifier_prebuilt//:buildifier"
# @//:buildifier also doesnt appear to work
"bazel.lsp.command": "starpls"
}
```

Running buildifier directly from bazel works as expected however I don't seem to be able to get linting highlighting to show up. Might anyone know what I'm doing wrong?

Start with the BUILD.bazel rule and the bazel.buildifierExecutable and bazel.lsp.command settings, comparing the working direct Bazel invocation with how the VS Code extension invokes it. Done means the prebuilt Buildifier setup works through the extension and linting highlighting appears.

Written by the indexing model from the issue text.