Add log message to deleted file in garbage collection

The Needs Review Queue Bot → tested this issue. It either no longer applies to Drupal core, or fails the Drupal core commit checks. Therefore, this issue status is now "Needs work".

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Re-rolled #11

error: patch failed: core/modules/file/file.module:650
error: core/modules/file/file.module: patch does not apply

Even though this is a task it seems like it will need test coverage.

Updating attributions