[7.16](backport #28517) Use fsnotify with long windows name-safe changes

[mergify]

This is an automatic backport of pull request #28517 done by Mergify.

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[elasticmachine]

💚 Build Succeeded

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• Start Time: 2021-11-03T04:32:36.534+0000

• Duration: 192 min 23 sec

• Commit: 5178dd2

Test stats 🧪

Test	Results
Failed	0
Passed	54618
Skipped	5303
Total	59921

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[efd6]

/test

[efd6]

/test

[elasticmachine]

Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

[mergify]

This pull request is now in conflicts. Could you fix it? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/7.16/pr-28517 upstream/mergify/bp/7.16/pr-28517
git merge upstream/7.16
git push upstream mergify/bp/7.16/pr-28517

[efd6]

/test

[mergify]

This pull request is now in conflicts. Could you fix it? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/7.16/pr-28517 upstream/mergify/bp/7.16/pr-28517
git merge upstream/7.16
git push upstream mergify/bp/7.16/pr-28517