renter: add testing for adding directory back to directory heap

4 jobs for 3491-worst-chunks in 34 minutes and 29 seconds (queued for 6 minutes and 6 seconds)
Status Job ID Name Coverage
  Lint
passed #209402312
lint

00:05:06

 
  Test
passed #209402315
integration-tests

00:29:21

75.0%
passed #209402313
legacy-tests

00:07:24

46.0%
passed #209402314
package-tests

00:20:18

87.0%