DM-42509: Extend output of show-current command

[andy-slac]

show-current --butler now shows (head) tag similarly to show-current,
this makes it easier to identify managers that need schema upgrade.

[codecov]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (a19f4ec) 54.37% compared to head (0aa4284) 54.36%.

Files	Patch %	Lines
.../lsst/daf/butler_migrate/script/migrate_current.py	0.00%	5 Missing ⚠️
python/lsst/daf/butler_migrate/scripts.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #31      +/-   ##
==========================================
- Coverage   54.37%   54.36%   -0.01%     
==========================================
  Files          33       33              
  Lines        1144     1146       +2     
  Branches      256      255       -1     
==========================================
+ Hits          622      623       +1     
- Misses        488      489       +1     
  Partials       34       34              

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[andy-slac]

@timj, I noticed that cli/resources.yaml is missing from pipe_base/pyproject.toml, I suppose we need it there too?

[timj]

Ah. Right. Hmm. I don't think any of the pip installable variants work with the butler cli plugins since nothing is setting the environment variable and for pip install we need to be using a different technique for finding these plugins using entry points. Regardless, if pipe_base isn't even including the file in the tar ball that pip installs then it will never work and needs to be fixed.