Don't print warning about small files on each file system scan

[rdner]

The warning is printed only once per each input, the rest of the information can be found in the debug logs.

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
  - [ ] I have made corresponding changes to the documentation
  - [ ] I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works. Where relevant, I have used the stresstest.sh script to run them under stress conditions and race detector to verify their stability.
• I have added an entry in ./changelog/fragments using the changelog tool.

Related issues

• Closes Filebeat is logging excessive amount of logs #45642
• Relates Log that files are too small to ingest at warn level #44751

[elasticmachine]

Pinging @elastic/elastic-agent-data-plane (Team:Elastic-Agent-Data-Plane)

[github-actions]

🤖 GitHub comments

Just comment with:

• run docs-build : Re-trigger the docs validation. (use unformatted text in the comment!)

[github-actions]

@Mergifyio backport 8.19 9.2 9.3

[mergify]

backport 8.19 9.2 9.3

✅ Backports have been created

Details

• #48726 [8.19](backport #48704) Don't print warning about small files on each file system scan has been created for branch 8.19 but encountered conflicts

Cherry-pick of 2157037 has failed:

On branch mergify/bp/8.19/pr-48704
Your branch is up to date with 'origin/8.19'.

You are currently cherry-picking commit 215703758.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   changelog/fragments/1770299686-remove-scan-fingerprint-warning.yaml
	modified:   filebeat/input/filestream/fswatch_test.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   filebeat/input/filestream/fswatch.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

• #48727 [9.2](backport #48704) Don't print warning about small files on each file system scan has been created for branch 9.2 but encountered conflicts

Cherry-pick of 2157037 has failed:

On branch mergify/bp/9.2/pr-48704
Your branch is up to date with 'origin/9.2'.

You are currently cherry-picking commit 215703758.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   changelog/fragments/1770299686-remove-scan-fingerprint-warning.yaml
	modified:   filebeat/input/filestream/fswatch_test.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   filebeat/input/filestream/fswatch.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

• #48728 [9.3](backport #48704) Don't print warning about small files on each file system scan has been created for branch 9.3