enh: add boldref / sbref to source metadata

[mgxd]

Closes #3498

[codecov]

Codecov Report

❌ Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.42%. Comparing base (26a4c7b) to head (ed1e936).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
fmriprep/workflows/bold/base.py	0.00%	2 Missing ⚠️
fmriprep/workflows/bold/fit.py	0.00%	2 Missing ⚠️
fmriprep/workflows/base.py	0.00%	1 Missing ⚠️

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Flag	BASE (26a4c7b)	HEAD (ed1e936)
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Additional details and impacted files

@@            Coverage Diff             @@
##           master   #3532       +/-   ##
==========================================
- Coverage   73.72%   0.42%   -73.31%     
==========================================
  Files          60      59        -1     
  Lines        4757    4733       -24     
  Branches      615     614        -1     
==========================================
- Hits         3507      20     -3487     
- Misses       1109    4713     +3604     
+ Partials      141       0      -141     

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[mgxd]

Looking at the boldref sources for one of the CI runs.. the idea behind this change was to make it easier to trace whether an sbref or the hmc boldref (which is a derivative of the bold series itself) was used to create it. I don't think we should include working directory files in the sources, so we could consider a few options:

• Backtracking to the first 'source' file (raw / derivative) and pass that along as a source
• Saving additional outputs

[effigies]

Just to pull the contents:

sub-02_task-cuedSGT_run-01_desc-coreg_boldref.json

{
  "Sources": [
    "/scratch/fmriprep_25_2_wf/sub_02_wf/bold_task_cuedSGT_run_01_echo_1_wf/bold_fit_wf/hmc_boldref_wf/gen_avg/sub-02_task-cuedSGT_run-01_echo-1_bold_valid_average.nii.gz",
    "bids::sub-02/func/sub-02_task-cuedSGT_run-01_from-boldref_to-auto00000_mode-image_desc-fmap_xfm.txt",
    "/scratch/fmriprep_25_2_wf/sub_02_wf/fmap_preproc_wf/wf_auto_00000/bs_filter/fmap_syn0Warp_Hz_trans_coeff000.nii.gz"
  ]
}

[effigies]

I think this just shows that we're not using the outputs of a datasink in our buffers. I'll fix that.