Somewhere between file/libmagic 5.36 and 5.39, the output of `file` on a
`.csi` file changed, breaking the ``metadata_bcf`` framework test with
the following error:
```
if found_exceptions:
> raise JobOutputsError(found_exceptions, job_stdio)
E galaxy.tool_util.verify.interactor.JobOutputsError: Output output_of_input_metadata: different than expected, difference (using contains):
E ( /tmp/tmpu1a3dgjcbcf_index_metadata_test.txt v. /tmp/tmpkt78tzggbcf_index_metadata_test.txt )
E Failed to find 'gzip compressed data, extra field' in history data. (lines_diff=0):
lib/galaxy/tool_util/verify/interactor.py:1222: JobOutputsError
```
So add a requirement for the latest `file` version and update the test
accordingly.
Nicola Soranzo