fix(#5742): using Deno.watchFs with the read whitelist and relative path causes PermissionDenied

[uki00a]

This PR closes #5742.

• Fixed the path passed to Permission.check_read to the absolute path format.

[tumile]

Shouldn't it be ./tls if you are testing for relative path?

[ry]

A better way to write this test is:

#[test]
fn test_permissions_read_watch_fs_with_relative_path() {
  let status = util::deno_cmd()
    .current_dir(&util::tests_path())
    .arg("run")
    .arg("--allow-read=.")
    .arg("complex_permissions_test.ts")
    .arg("readWatchFs")
    .arg("tls")
    .spawn()
    .unwrap()
    .wait()
    .unwrap();
  assert!(status.success());
}

It's not necessary to collect output - we just need to check the process didn't fail.

[nayeemrmn]

@ry This error has popped up a lot. FYI as part of #5642 I've moved the path resolution to cli/permissions.rs so you don't have to resolve everywhere else.

[uki00a]

@tumile @ry @nayeemrmn Thanks for comments and suggestions!
As @nayeemrmn has said, this problem will be resolved as part of #5642.
So, I'll close this PR.

Thanks!