Update 330-corrupt-images.bats for composefs behavior change

[mtrmac]

With containers/storage#2118 and containers/image#2589 , the convert_images (i.e. “disallow non-partial pulls”) option fails with VFS.

The 330-corrupt-images tests were temporarily switching to VFS, possibly within a composefs test run with convert_images set, without disabling it. That is going to fail after we update c/image and c/storage; update the tests for the changed behavior.

Does this PR introduce a user-facing change?

None

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[mtrmac]

@edsantiago This is a composefs feature/change change, not quite zstd:chunked related, so filing in a separate PR. And this test update will be necessary to support current c/storage + c/image even if we don’t switch to chunked images.

50da568 shows tests failing with current c/storage + c/image and no other modification.

17685d1 shows the tests passing with current c/storage + c/image, and a test update.

This PR now contains only the test update, as proven by the two test runs above.