fix: don't unprotect outs if not cached

[evals-gic]

Only unprotect outputs that have use_cache set to True. This prevents unnecessary unprotection of non-cached outputs.

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[skshetry]

This is already how unprotect works.

dvc/dvc/output.py

Lines 1079 to 1084 in dcf6f48

	def unprotect(self):
	if self.exists and self.use_cache:
	with TqdmCallback(
	size=self.meta.nfiles or -1, desc=f"Unprotecting {self}"
	) as callback:
	self.cache.unprotect(self.fs_path, callback=callback)