Change $requirements["$file file writeable"] to $requirements["$file file writable"]

@expectedDeprecation appears to no longer be used in Drupal core so tags for test to replace though.
Change record would have to be updated for deprecated in 10.1 and removed in 11

Thanks

Running d10 test

Wrong comment as I was reviewing the patch from a linked ticket.

Ran tests for #4 with no issue and fixes a typo.

Committed 12db5f3 and pushed to 10.1.x. Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.