Skip LogRotatorTest#ableToDeleteCurrentBuild on Windows

[dwnusbaum]

Trying to fix another observed flake from #9810, see https://github.com/jenkinsci/jenkins/pull/9810/files/9aaa7ba3fe523c07a4ed8d63281dbe86db064465#r1819518792.

Testing done

I ran these tests manually a little bit to check various things, but I do not have easy access to Windows to run the tests in a loop to check flakiness in a robust way. The observed failure is due to log rotation failing to delete a build with this exception:

Also:   java.nio.file.AccessDeniedException: C:\Jenkins\agent\workspace\Core_jenkins_PR-9921\test\target\j h17634935987546233869\jobs\test0\builds\1 -> C:\Jenkins\agent\workspace\Core_jenkins_PR-9921\test\target\j h17634935987546233869\jobs\test0\builds\.1
		at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:89)
		at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103)
		at java.base/sun.nio.fs.WindowsFileCopy.move(WindowsFileCopy.java:317)
		at java.base/sun.nio.fs.WindowsFileSystemProvider.move(WindowsFileSystemProvider.java:293)
		at java.base/java.nio.file.Files.move(Files.java:1432)
		at hudson.model.Run.delete(Run.java:1598)
		at hudson.tasks.LogRotator.perform(LogRotator.java:179)
jenkins.util.io.CompositeIOException: Failed to rotate logs for [test0 #1]
	at hudson.tasks.LogRotator.perform(LogRotator.java:236)
	at hudson.model.Job.logRotate(Job.java:490)
	at jenkins.model.GlobalBuildDiscarderListener.onFinalized(GlobalBuildDiscarderListener.java:51)
	at hudson.model.listeners.RunListener.lambda$fireFinalized$3(RunListener.java:260)
	at jenkins.util.Listeners.lambda$notify$0(Listeners.java:59)
	at jenkins.util.Listeners.notify(Listeners.java:67)
	at hudson.model.listeners.RunListener.fireFinalized(RunListener.java:258)
	at hudson.model.Run.onEndBuilding(Run.java:1985)
	at hudson.model.Run.execute(Run.java:1892)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44)
	at hudson.model.ResourceController.execute(ResourceController.java:101)
	at hudson.model.Executor.run(Executor.java:446)

My best hypothesis is that the move failed because something else was accessing the directory in question, but given the AccessDeniedException that did not have the typical The process cannot access the file because it is being used by another process message, perhaps the problem was something else entirely.

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[jglick]

FWIW I ran the test (in trunk) 5× on Windows 10 and it passed every time.

[MarkEWaite]

This PR is now ready for merge. We will merge it after approximately 24 hours if there is no negative feedback.

/label ready-for-merge