Set WatchMask::OPEN on inotify

This fixes the problem of `Access(Open(_))` variant not being reported.

Signed-off-by: y5c4l3 <y5c4l3@proton.me>

notify/src/inotify.rs

@@ -417,6 +417,7 @@ impl EventLoop {
     ) -> Result<()> {
         let mut watchmask = WatchMask::ATTRIB
             | WatchMask::CREATE
+            | WatchMask::OPEN
             | WatchMask::DELETE
             | WatchMask::CLOSE_WRITE
             | WatchMask::MODIFY