rules_shell has undeclared dependancies

[randomizedcoder]

rules_shell has undeclared dependencies, which it relies upon and that are outside the sandbox.

_DEFAULT_SHELL_PATHS = {
    "windows": "c:/msys64/usr/bin/bash.exe",
    "linux": "/bin/bash",
    "osx": "/bin/bash",
    "freebsd": "/usr/local/bin/bash",
    "openbsd": "/usr/local/bin/bash",
}

https://github.com/bazelbuild/rules_shell/blob/main/shell/private/repositories/sh_config.bzl#L18

This is similar to this issue, which we have almost resolved
bazel-contrib/rules_go#4343