Recompile inotifywait.exe; test w/ Elixir 1.18 (#103)

Recently updated version does not match the bundled sources
and probably came from the upstream, which currently doesn't watch
for closed STDIN which Port needs to cleanly shut down the process.

Recompile bundled sources that do have the feature and update the
binary.

.github/workflows/ci-windows.yml

@@ -21,6 +21,9 @@ jobs:
           - pair:
               elixir: 1.17.x
               otp: 27.x
+          - pair:
+              elixir: 1.18.x
+              otp: 27.x
 
     steps:
       - uses: erlef/setup-beam@v1

test/file_system_test.exs

@@ -4,8 +4,9 @@ defmodule FileSystemTest do
   @moduletag os_linux: true, os_macos: true, os_windows: true
 
   test "file event api" do
-    tmp_dir = System.cmd("mktemp", ["-d"]) |> elem(0) |> String.trim()
-    :ok = File.mkdir_p(tmp_dir)
+    tmp_dir = mktemp_d!()
+    on_exit(fn -> File.rm_rf!(tmp_dir) end)
+
     {:ok, pid} = FileSystem.start_link(dirs: [tmp_dir])
     FileSystem.subscribe(pid)
 
@@ -34,7 +35,12 @@ defmodule FileSystemTest do
     |> Enum.each(&Port.close/1)
 
     assert_receive {:file_event, ^pid, :stop}, 5000
+  end
 
-    File.rm_rf!(tmp_dir)
+  defp mktemp_d!() do
+    name = for _ <- 1..10, into: "", do: <<Enum.random(~c'0123456789abcdef')>>
+    path = Path.join([System.tmp_dir!(), name])
+    File.mkdir_p!(path)
+    path
   end
 end