Transport: refactor has_magic

[khsrali]

has_magic is a non-descriptive name, @agoscinski suggests for refactoring.

[codecov]

Codecov Report

Attention: Patch coverage is 81.81818% with 6 lines in your changes missing coverage. Please review.

Project coverage is 78.08%. Comparing base (8c5c709) to head (54ee38a).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/aiida/transports/plugins/ssh_async.py	66.67%	3 Missing ⚠️
src/aiida/engine/daemon/execmanager.py	66.67%	1 Missing ⚠️
src/aiida/transports/plugins/local.py	88.89%	1 Missing ⚠️
src/aiida/transports/plugins/ssh.py	87.50%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6749   +/-   ##
=======================================
  Coverage   78.08%   78.08%           
=======================================
  Files         564      564           
  Lines       42547    42547           
=======================================
  Hits        33219    33219           
  Misses       9328     9328           

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[agoscinski]

Ah sorry, for this misunderstanding. It was just a comment that I don't like the name, not a suggestion to change it in a separate PR. I am not sure if we break the public API by doing this which goes back again to the discussion in PR #6636 and #6722. I just leave this PR open until we have settled on what is our public API.

[khsrali]

One can always refactor by providing a deprecation path.
But I agree, it's not that important to change this anyways..