Add tree argument to ica_reclassify

[tsalo]

Closes #1291.

The current blocker is that a new tree will involve generating some new metrics, which, if they already exist in the component tree, will raise an error.

Changes proposed in this pull request:

• Add --tree argument to ica_reclassify.
• Allow manacc and manrej to be empty if tree is provided.

[codecov]

Codecov Report

❌ Patch coverage is 28.57143% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.15%. Comparing base (26424f8) to head (73055c2).

Files with missing lines	Patch %	Lines
tedana/workflows/ica_reclassify.py	28.57%	3 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1360      +/-   ##
==========================================
- Coverage   90.20%   90.15%   -0.06%     
==========================================
  Files          30       30              
  Lines        4862     4865       +3     
  Branches      820      821       +1     
==========================================
  Hits         4386     4386              
- Misses        316      318       +2     
- Partials      160      161       +1     

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[Copilot]

Pull request overview

This PR adds a --tree argument to ica_reclassify, allowing users to test different decision trees on previously processed data without manually specifying components to accept or reject. This addresses issue #1291 and supports the use case where users want to experiment with different decision trees on the same dataset.

Changes:

• Added --tree command-line argument to the ica_reclassify parser
• Modified validation logic to allow empty manual accept/reject lists when a tree is provided
• Updated workflow to use the specified tree instead of the previous run's tree when provided

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