unreliable test: FileSystem, rename, source file does not exist at first, but eventually appears

[Hweinstock]

Failed on mac stable: https://github.com/aws/aws-toolkit-vscode/actions/runs/11823977700/job/32944478705

FileSystem
       rename()
         source file does not exist at first, but eventually appears:

      AssertionError [ERR_ASSERTION]: telemetry metric not found: "ide_fileSystem"
      + expected - actual

      -false
      +true

aws-toolkit-vscode/packages/core/src/test/shared/fs/fs.test.ts

Lines 462 to 477 in e835b6c

	it('source file does not exist at first, but eventually appears', async () => {
	const oldPath = testFolder.pathFrom('oldFile.txt')
	const newPath = testFolder.pathFrom('newFile.txt')
	const result = fs.rename(oldPath, newPath)
	// this file is created after the first "exists" check fails, the following check should pass
	void testutil.toFile('hello world', oldPath)
	await result
	testutil.assertTelemetry('ide_fileSystem', {
	action: 'rename',
	result: 'Succeeded',
	reason: 'RenameRaceCondition',
	})
	})
	})

[Hweinstock]

Unable to reproduce, appears to be very rare or potentially a "one-off": #6001.

Reopen if able to reproduce, or witnessed again.