Fsnotify bump and change code

[yanggangtony]

Signed-off-by: yanggang gang.yang@daocloud.io

This pr have done 2 things.
(1) Bump fsnotify version to 1.6.0
fsnotify new feature and fsnotify 1.6.0 release .
Maybe we can change our code follow the style.

(2)Change the bit logic for fsnotify.
I test code in my local env , like that.

[k8s-ci-robot]

Hi @yanggangtony. Thanks for your PR.

I'm waiting for a containerd member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[fuweid]

LGTM. Thanks